MS21207 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Head | 100° flat countersunk, tapping, spaced thread |
| Drive | cross recess |
| Status | MS21207A (24 Jun 1994) cancelled and superseded by NASM21207 (Notice 2, 25 May 2000); the part numbers are identical. |
Part numbers and lengths
Sizes commonly stocked. The standard governs and may list other lengths.
No. 43 part numbers
| Part no. | Length, in |
|---|---|
| MS21207-4-4 | 1/4 |
| MS21207-4-6 | 3/8 |
| MS21207-4-8 | 1/2 |
No. 64 part numbers
| Part no. | Length, in |
|---|---|
| MS21207-6-6 | 3/8 |
| MS21207-6-8 | 1/2 |
| MS21207-6-10 | 5/8 |
| MS21207-6-12 | 3/4 |
No. 84 part numbers
| Part no. | Length, in |
|---|---|
| MS21207-8-6 | 3/8 |
| MS21207-8-8 | 1/2 |
| MS21207-8-10 | 5/8 |
| MS21207-8-12 | 3/4 |
No. 104 part numbers
| Part no. | Length, in |
|---|---|
| MS21207-10-6 | 3/8 |
| MS21207-10-8 | 1/2 |
| MS21207-10-10 | 5/8 |
| MS21207-10-12 | 3/4 |
Part number
Notes from the standard
- Dash number: size (4, 6, 8, 10), then length in sixteenths of an inch: MS21207-6-8 is a No. 6, 1/2 in long.
- Cadmium Type II plating on the MS21207 listing; the NAS548P listing carries Type I plating.
- Part number written as the listing writes it; the standard governs the exact format.
- Approved data governs. Use the screw the SRM, drawing or IPC calls for.
Where to buy
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Sources
- MS21207 Rev. A, 24 Jun 1994 — Screw, Tapping, 100° Flat Head, Spaced Thread — nominal sizes and part numbers. Notices: 1 24 Jun 1994 MS21207A dated 29 Dec 1972 reviewed and determined valid for use in acquisition.; 2 25 May 2000 MS21207A cancelled and superseded by NASM21207. The Part Identification Number for MS21207A and the part number for NASM21207 are identical.
Educational reference only. not approved data. Always consult the applicable SRM, AMM, or AC 43.13-1B and your certifying authority.