NAS517 at a glance
Where to buy
Specification
| Item | Value |
|---|---|
| Head | 100° flat countersunk, close tolerance |
| Drive | cross recess |
| Status | Check the current issue before design use. |
Part numbers and lengths
Sizes commonly stocked. The standard governs and may list other lengths.
.1640-3216 part numbers
| Part no. | Length, in | Grip, in |
|---|---|---|
| NAS517-2-0 | .406 | — |
| NAS517-2-1 | .469 | — |
| NAS517-2-2 | .531 | .125 |
| NAS517-2-3 | .594 | .188 |
| NAS517-2-4 | .656 | .250 |
| NAS517-2-5 | .719 | .312 |
| NAS517-2-6 | .781 | .375 |
| NAS517-2-7 | .844 | .438 |
| NAS517-2-8 | .906 | .500 |
| NAS517-2-10 | 1.031 | .625 |
| NAS517-2-11 | 1.093 | .688 |
| NAS517-2-12 | 1.156 | .750 |
| NAS517-2-13 | 1.219 | .812 |
| NAS517-2-14 | 1.281 | .875 |
| NAS517-2-15 | 1.343 | .938 |
| NAS517-2-16 | 1.406 | 1.000 |
.1900-3223 part numbers
| Part no. | Length, in | Grip, in |
|---|---|---|
| NAS517-3-00 | .343 | — |
| NAS517-3-0 | .406 | — |
| NAS517-3-1 | .469 | — |
| NAS517-3-2 | .531 | .125 |
| NAS517-3-3 | .594 | .188 |
| NAS517-3-4 | .656 | .250 |
| NAS517-3-5 | .719 | .312 |
| NAS517-3-6 | .781 | .375 |
| NAS517-3-7 | .844 | .438 |
| NAS517-3-8 | .906 | .500 |
| NAS517-3-9 | .969 | .562 |
| NAS517-3-10 | 1.031 | .625 |
| NAS517-3-11 | 1.093 | .688 |
| NAS517-3-12 | 1.156 | .750 |
| NAS517-3-13 | 1.219 | .812 |
| NAS517-3-14 | 1.281 | .875 |
| NAS517-3-15 | 1.343 | .938 |
| NAS517-3-16 | 1.406 | 1.000 |
| NAS517-3-18 | 1.531 | 1.125 |
| NAS517-3-20 | 1.656 | 1.250 |
| NAS517-3-22 | 1.781 | 1.375 |
| NAS517-3-24 | 1.906 | 1.500 |
| NAS517-3-26 | 2.031 | 1.625 |
.2500-2815 part numbers
| Part no. | Length, in | Grip, in |
|---|---|---|
| NAS517-4-0 | .531 | — |
| NAS517-4-2 | .594 | .125 |
| NAS517-4-3 | .656 | .188 |
| NAS517-4-4 | .719 | .250 |
| NAS517-4-5 | .781 | .312 |
| NAS517-4-6 | .844 | .375 |
| NAS517-4-7 | .906 | .438 |
| NAS517-4-8 | .969 | .500 |
| NAS517-4-9 | 1.031 | .562 |
| NAS517-4-10 | 1.093 | .625 |
| NAS517-4-11 | 1.156 | .688 |
| NAS517-4-12 | 1.219 | .750 |
| NAS517-4-13 | 1.281 | .812 |
| NAS517-4-14 | 1.343 | .875 |
| NAS517-4-16 | 1.468 | 1.000 |
.3125-2410 part numbers
| Part no. | Length, in | Grip, in |
|---|---|---|
| NAS517-5-4 | .781 | .250 |
| NAS517-5-5 | .844 | .312 |
| NAS517-5-6 | .906 | .375 |
| NAS517-5-7 | .969 | .438 |
| NAS517-5-8 | 1.031 | .500 |
| NAS517-5-9 | 1.093 | .562 |
| NAS517-5-10 | 1.156 | .625 |
| NAS517-5-11 | 1.219 | .688 |
| NAS517-5-12 | 1.281 | .750 |
| NAS517-5-16 | 1.531 | 1.000 |
Part number
Notes from the standard
- Dash number: thread size (2 = .1640-32, 3 = .1900-32, 4 = .2500-28, 5 = .3125-24), then grip in sixteenths of an inch (-0 and -00 are the shortest, with no grip listed).
- Length and grip in inches, as listed.
- 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
AmericaDistributor coming soonOur partner for this region is on its way
EuropeDistributor coming soonOur partner for this region is on its way
OceaniaDistributor coming soonOur partner for this region is on its way
Distributors coming soon.
Sources
- NAS517 — Screw, Machine, 100° Flat Head, Close Tolerance, Structural — 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.