AN936 at a glance
Cancelled: use MS35333 / MS35335 / MS35336. AN936 is cancelled (MS35333, MS35335, MS35336 or MS35790 (see the interchangeability table on those standards); sheet itself supersedes USAF Drawing 936, NAF Drawing 1058, AN Aero Standard 215367). Replacement named by the standard: MS35333, MS35335, MS35336, MS35790. The old number AN936A2 still turns up on drawings and IPCs: check the replacement for each part before you order.
Specification
| Item | Value |
|---|---|
| Type | Lock washer, tooth |
| Material | Steel or bronze, see procurement specification MIL-W-6986 |
| Locking | Teeth (Type A internal, B external, C 82 deg countersunk external, D 100 deg countersunk external) |
| Item | Value |
|---|---|
| Finish | Steel: cadmium plate QQ-P-416 Type I Class 2 (no supplementary treatment). Bronze: cadmium plate QQ-P-416 Type II Class 2 (with supplementary chromate treatment) and dyed deep yellow per FED-STD-595 color 23538 |
| Procurement | MIL-W-6986 |
| Status | Inactive for design after 15 May 1970 (use MS35333, MS35335, MS35336 or MS35790). Cancelled in part after 15 May 1970: all dash numbers cancelled except A3, A416H, B3, B3B, C2 and C2B. |
Dimensions by size
| Dimension, in | No. 2 | No. 3 | No. 4 | No. 6 | No. 8 | No. 10 | 1/4 | 1/4 | 5/16 | 3/8 | 7/16 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1 | No. 3 | No. 4 | No. 6 | No. 8 | No. 10 | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7/8 | 1 | No. 2 | No. 4 | No. 6 | No. 8 | No. 10 | 1/4 | 5/16 | 3/8 | 7/16 | No. 2 | No. 4 | No. 6 | No. 8 | No. 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D — Hole diameter, Types A and B (tolerance column gives the plus tolerance) | .089 | .102 | .116 | .142 | .168 | .195 | .256 | .256 | .320 | .384 | .448 | .472 | .512 | .576 | .640 | .769 | .894 | 1.019 | .102 | .116 | .142 | .168 | .195 | .256 | .320 | .384 | .448 | .512 | .576 | .641 | .768 | .897 | 1.025 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| D tolerance | +.006/-.000 | +.007/-.000 | +.007/-.000 | +.008/-.000 | +.008/-.000 | +.009/-.000 | +.011/-.000 | +.011/-.000 | +.012/-.000 | +.014/-.000 | +.015/-.000 | +.008/-.000 | +.017/-.000 | +.018/-.000 | +.019/-.000 | +.026/-.000 | +.024/-.000 | +.024/-.000 | +.007/-.000 | +.007/-.000 | +.008/-.000 | +.008/-.000 | +.009/-.000 | +.011/-.000 | +.012/-.000 | +.014/-.000 | +.016/-.000 | +.017/-.000 | +.018/-.000 | +.022/-.000 | +.022/-.000 | +.030/-.000 | +.035/-.000 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| A — Outside diameter, Types A and B (minus tolerance) | .200 | .232 | .270 | .288 | .336 | .381 | .478 | .536 | .607 | .692 | .789 | .607 | .883 | 1.000 | 1.071 | 1.245 | 1.386 | 1.637 | .230 | .255 | .317 | .381 | .406 | .506 | .601 | .695 | .760 | .900 | .985 | 1.070 | 1.260 | 1.410 | 1.620 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| A tolerance | -.025/+.000 | -.017/+.000 | -.015/+.000 | -.010/+.000 | -.011/+.000 | -.011/+.000 | -.012/+.000 | -.012/+.000 | -.013/+.000 | -.014/+.000 | -.042/+.000 | -.014/+.000 | -.016/+.000 | -.043/+.000 | -.018/+.000 | -.025/+.000 | -.022/+.000 | -.024/+.000 | -.010/+.000 | -.010/+.000 | -.011/+.000 | -.011/+.000 | -.011/+.000 | -.012/+.000 | -.013/+.000 | -.015/+.000 | -.020/+.000 | -.020/+.000 | -.020/+.000 | -.025/+.000 | -.045/+.000 | -.030/+.000 | -.030/+.000 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| T — Thickness, Types A and B (±.002) | .012 | .016 | .016 | .018 | .020 | .022 | .025 | .038 | .030 | .036 | .038 | .018 | .040 | .040 | .045 | .050 | .056 | .063 | .014 | .016 | .020 | .020 | .022 | .025 | .030 | .036 | .038 | .040 | .040 | .045 | .050 | .056 | .063 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| G — Hole diameter, Type C | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .089 | .116 | .142 | .168 | .195 | .256 | .320 | .384 | .448 | — | — | — | — | — |
| G tolerance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | +.006/-.000 | +.007/-.000 | +.008/-.000 | +.008/-.000 | +.009/-.000 | +.011/-.000 | +.012/-.000 | +.014/-.000 | +.015/-.000 | — | — | — | — | — |
| H — Countersunk outside diameter, Type C (minus tolerance) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .183 | .232 | .300 | .353 | .370 | .478 | .625 | .801 | .890 | — | — | — | — | — |
| H tolerance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | -.013/+.000 | -.014/+.000 | -.015/+.000 | -.016/+.000 | -.017/+.000 | -.020/+.000 | -.022/+.000 | -.025/+.000 | -.027/+.000 | — | — | — | — | — |
| J — Thickness, Type C (±.002) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .008 | .016 | .018 | .018 | .022 | .022 | .025 | .030 | .036 | — | — | — | — | — |
| K — Hole diameter, Type D | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .089 | .116 | .142 | .168 | .195 |
| K tolerance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | +.006/-.000 | +.007/-.000 | +.008/-.000 | +.008/-.000 | +.009/-.000 |
| M — Countersunk outside diameter, Type D (minus tolerance) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .190 | .241 | .287 | .340 | .394 |
| M tolerance | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | -.014/+.000 | — | -.016/+.000 | -.017/+.000 |
| N — Thickness, Type D (±.002) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | .008 | .016 | .012 | .016 | .018 |
Maximum – minimum as tabulated in AN936 Rev. 7; letters as on the standard's drawing.
Part numbers
Every part number of AN936 Rev. 7, each with its own link. Codes (material, finish) build the full number in the box below.
No. 23 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A2 | A | — | .089 | .200 | .012 |
| AN936C2 | C | C2B | — | — | — |
| AN936D2 | D | — | — | — | — |
No. 32 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A3 | A | — | .102 | .232 | .016 |
| AN936B3 | B | B3B | .102 | .230 | .014 |
No. 44 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A4 | A | A4B | .116 | .270 | .016 |
| AN936B4 | B | B4B | .116 | .255 | .016 |
| AN936C4 | C | C4B | — | — | — |
| AN936D4 | D | — | — | — | — |
No. 64 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A6 | A | A6B | .142 | .288 | .018 |
| AN936B6 | B | B6B | .142 | .317 | .020 |
| AN936C6 | C | C6B | — | — | — |
| AN936D6 | D | — | — | — | — |
No. 84 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A8 | A | A8B | .168 | .336 | .020 |
| AN936B8 | B | B8B | .168 | .381 | .020 |
| AN936C8 | C | C8B | — | — | — |
| AN936D8 | D | — | — | — | — |
No. 104 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A10 | A | A10B | .195 | .381 | .022 |
| AN936B10 | B | B10B | .195 | .406 | .022 |
| AN936C10 | C | C10B | — | — | — |
| AN936D10 | D | — | — | — | — |
1/44 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A416 | A | A416B | .256 | .478 | .025 |
| AN936A416H | A | — | .256 | .536 | .038 |
| AN936B416 | B | B416B | .256 | .506 | .025 |
| AN936C416 | C | C416B | — | — | — |
5/163 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A516 | A | A516B | .320 | .607 | .030 |
| AN936B516 | B | B516B | .320 | .601 | .030 |
| AN936C516 | C | C516B | — | — | — |
3/83 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A616 | A | A616B | .384 | .692 | .036 |
| AN936B616 | B | B616B | .384 | .695 | .036 |
| AN936C616 | C | C616B | — | — | — |
7/164 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A716 | A | A716B | .448 | .789 | .038 |
| AN936A716S | A | A716BS | .472 | .607 | .018 |
| AN936B716 | B | B716B | .448 | .760 | .038 |
| AN936C716 | C | C716B | — | — | — |
1/22 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A816 | A | — | .512 | .883 | .040 |
| AN936B816 | B | — | .512 | .900 | .040 |
9/162 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A916 | A | — | .576 | 1.000 | .040 |
| AN936B916 | B | — | .576 | .985 | .040 |
5/82 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A1016 | A | — | .640 | 1.071 | .045 |
| AN936B1016 | B | — | .641 | 1.070 | .045 |
3/42 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A1216 | A | — | .769 | 1.245 | .050 |
| AN936B1216 | B | — | .768 | 1.260 | .050 |
7/82 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A1416 | A | — | .894 | 1.386 | .056 |
| AN936B1416 | B | — | .897 | 1.410 | .056 |
12 part numbers
| Part no. | Type | Bronze dash | D / G / K | A / H / M | T / J / N |
|---|---|---|---|---|---|
| AN936A1616 | A | — | 1.019 | 1.637 | .063 |
| AN936B1616 | B | — | 1.025 | 1.620 | .063 |
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | AN936<dash>{bronze} |
| (none) | Bronze: Steel, cadmium plated (the dash already has the type letter, size and any H or S suffix) |
| B | Bronze: Bronze (final letter B added to the dash, e.g. AN936B416B) |
| A | Type: Internal teeth |
| B | Type: External teeth |
| C | Type: 82 deg countersunk external teeth (for 82 deg countersunk head screws only) |
| D | Type: 100 deg countersunk external teeth (for 100 deg countersunk head screws only) |
| Example | AN936B416B — Bronze washer with external teeth, non-countersunk, for use with 1/4-inch fastener |
Notes from the standard
- Use in conformance with AND10476.
- Number of teeth may vary with washer size, in accordance with commercial practice.
- Note (a): A716S and A716BS have the alternate teeth twisted in the direction opposite to that of the other teeth.
- Dimensions in inches. Type C washers are for 82 deg countersunk head screws only; Type D for 100 deg countersunk head screws only.
- In case of conflict, the requirements on this sheet take precedence over MIL-W-6986.
- Type B has no No. 2 size; Type D is steel only; bronze washers exist only for the sizes with a bronze dash in the rows.
- The sheet is a poor-quality scan; cells that could not be read with certainty are listed in the verification register.
- Tolerances: D, G, K are listed with a plus tolerance (and -.000); A, H, M with a minus tolerance (and +.000).
Sources
- AN936 Rev. 7, 28 Sep 1970 — Washer, Tooth Lock — dimensions, part numbers and notes. Public domain, distribution unlimited.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.