AN919 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Type | Fitting, reducer, 37° flared tube |
| Status | Check the current issue of the standard before design use. |
Dimensions by size
| Dimension, in | -0 | -1 | -2 | -3 | -4 | -5 | -6 | -7 | -8 | -9 | -10 | -11 | -12 | -13 | -14 | -15 | -16 | -17 | -18 | -19 | -20 | -21 | -22 | -23 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OD1 — Large end tube O.D. | 3/16 | 1/4 | 1/4 | 5/16 | 3/8 | 3/8 | 3/8 | 3/8 | 1/2 | 1/2 | 1/2 | 1/2 | 1/2 | 5/8 | 5/8 | 5/8 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 1 | 1 | 1 |
| T — Large end thread T (ref.) | 3/8-24 | 7/16-20 | 7/16-20 | 1/2-20 | 9/16-18 | 9/16-18 | 9/16-18 | 9/16-18 | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 | 3/4-16 | 7/8-14 | 7/8-14 | 7/8-14 | 1-1/16-12 | 1-1/16-12 | 1-1/16-12 | 1-1/16-12 | 1-1/16-12 | 1-5/16-12 | 1-5/16-12 | 1-5/16-12 |
| OD2 — Small end tube O.D. | 1/8 | 1/8 | 3/16 | 1/4 | 1/8 | 3/16 | 1/4 | 5/16 | 1/8 | 3/16 | 1/4 | 5/16 | 3/8 | 1/4 | 3/8 | 1/2 | 1/4 | 5/16 | 3/8 | 1/2 | 5/8 | 1/4 | 5/8 | 3/4 |
| R — Small end thread R (ref.) | 5/16-24 | 5/16-24 | 3/8-24 | 7/16-20 | 5/16-24 | 3/8-24 | 7/16-20 | 1/2-20 | 5/16-24 | 3/8-24 | 7/16-20 | 1/2-20 | 9/16-18 | 7/16-20 | 9/16-18 | 3/4-16 | 7/16-20 | 1/2-20 | 9/16-18 | 3/4-16 | 7/8-14 | 7/16-20 | 7/8-14 | 1-1/16-12 |
| E — E | .625 | .688 | .688 | .750 | .813 | .813 | .813 | .813 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.125 | 1.125 | 1.125 | 1.375 | 1.375 | 1.375 | 1.375 | 1.375 | 1.625 | 1.625 | 1.625 |
| W — W | 1-11/64 | 1-1/4 | 1-9/32 | 1-23/64 | 1-19/64 | 1-21/64 | 1-13/32 | 1-13/32 | 1-27/64 | 1-29/64 | 1-17/32 | 1-17/32 | 1-17/32 | 1-21/32 | 1-21/32 | 1-3/4 | 1-51/64 | 1-51/64 | 1-51/64 | 1-57/64 | 2 | 1-27/32 | 2-3/64 | 2-5/32 |
| S — S | 5/8 | 11/16 | 37/64 | 39/64 | 5/8 | 5/8 | 5/8 | 5/8 | 23/32 | 23/32 | 23/32 | 23/32 | 23/32 | 51/64 | 51/64 | 51/64 | 57/64 | 57/64 | 57/64 | 57/64 | 57/64 | 57/64 | 57/64 | 57/64 |
Dimensions in inches as tabulated in the catalogue listing; the standard governs. Blank cells: not stated in the listing.
Part numbers
Part numbers as listed. The standard governs and may list other sizes.
3/161 part number
| Part no. | Large end tube O.D. | Small end tube O.D. |
|---|---|---|
| AN919-0 | 3/16 | 1/8 |
5/161 part number
| Part no. | Large end tube O.D. | Small end tube O.D. |
|---|---|---|
| AN919-3 | 5/16 | 1/4 |
3/84 part numbers
| Part no. | Large end tube O.D. | Small end tube O.D. |
|---|---|---|
| AN919-4 | 3/8 | 1/8 |
| AN919-5 | 3/8 | 3/16 |
| AN919-6 | 3/8 | 1/4 |
| AN919-7 | 3/8 | 5/16 |
1/25 part numbers
| Part no. | Large end tube O.D. | Small end tube O.D. |
|---|---|---|
| AN919-8 | 1/2 | 1/8 |
| AN919-9 | 1/2 | 3/16 |
| AN919-10 | 1/2 | 1/4 |
| AN919-11 | 1/2 | 5/16 |
| AN919-12 | 1/2 | 3/8 |
5/83 part numbers
| Part no. | Large end tube O.D. | Small end tube O.D. |
|---|---|---|
| AN919-13 | 5/8 | 1/4 |
| AN919-14 | 5/8 | 3/8 |
| AN919-15 | 5/8 | 1/2 |
Part number
What each code means
| Part | Meaning |
|---|---|
| Format | AN919-<dash><material> |
| D | Material: Aluminum |
| (none) | Material: Steel |
| J | Material: Corrosion resistant steel |
| Example | AN919-4 — Steel, dash 4 |
Notes from the standard
- Cells printed once across several rows in the listing are repeated on each row they span.
- To confirm: S for -2 and -3 reads 37/64 and 39/64, below S of -1 (11/16); legible in the image but out of sequence.
Where to buy
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Distributors coming soon.
Sources
- AN919 — Reducer, Male to Male, External Thread Flared Tube 37° — nominal sizes and part numbers.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.