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MS51957-45B
8-32X1/2 MS51957-B Phil Pan M/S Coarse Full Thread 300 Series S/S DFAR Black Ox
Description
Pan Head Machine Screw
Specifications
| Alternate Part Number | AN515C8R8 |
|---|---|
| Color | Black |
| Country of Origin | USA |
| Diameter | #8 |
| Drive | Phillips |
| Drive Style | Phillips |
| Drive Type | Phillips |
| Fastener Length | Between 0.469 inches and 0.500 inches |
| Finish | Black Oxide Coating |
| Full Size | #8-32 x 1/2 |
| Head Angle | 100 ? |
| Head Diameter | Between 0.306 inches and 0.322 inches |
| Head Height | Between 0.105 inches and 0.115 inches |
| Head Style | Pan Head |
| Head Type | Pan |
| Industry Standards/Certification | MS51957 |
| Internal Drive Style | Cross recess type 1 |
| Length | 1/2 in |
| Material | CRES |
| MilspecPart | MS51957-B |
| Min. Tensile Strength (psi) | 80000 pounds per square inch |
| NIIN | 00-470-3254 |
| NSN | 5305-00-470-3254 |
| Nondefinitive Specification/Std Data | 3 type and 9( style |
| Screw Material | Stainless steel or steel |
| Screw Material Specification | 300 series federal standard 1st material response or comp 16-18 or 18-8 assn standard 2nd material response 300 series federal specification 1st material response or 66 qq-s-763 |
| Size | 8-32 |
| Thread Class | 2a |
| Thread Diameter | 0.164 |
| Thread Direction | Right-hand |
| Thread Length | Between 0.407 inches and 0.500 inches |
| Thread Qty | 32 |
| Thread Qty Per Inch (tpi) | 32 |
| Thread Series | UNC |
| Thread Series Designator | Unc (coarse thread) |
| Thread Size | 8-32 |
| Thread Type | Coarse Thread, UNC |
| Threads Per Inch | 32 |
| U.O.M. | Imperial |
| Weight | .005 lb |
Cross-reference
Interchangeable
Parts that share a National Stock Number or are listed as an alternate for MS51957-45B — functionally equivalent.
- AN515C-8-R8 Listed alternate 1/2 in · Phillips Recess Head · CRES
Similar parts
Parts with matching key dimensions — often from a different standards family. Candidates for comparison only; verify the full specification before substituting.
- AN526-832R8 AN #8-32 · 1/2 in · Pan Head · Steel
- LP51957-45 Other #8-32 · 1/2 in · Pan Head · CRES
- NAS1100E08-8 NAS #8-32 · 1/2 in · Pan Head · Iron
- NAS1100E08-8P NAS #8-32 · 1/2 in · Pan Head · Iron
- NAS1190-08P8 NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS1190-08P8B NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS1190-08P8L NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS1190-08T8L NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS602-8 NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS602-8B NAS #8-32 · 1/2 in · Pan Head · Steel
- NAS602-8P NAS #8-32 · 1/2 in · Pan Head · Steel
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Catalog data updated 2026-07-05. Report a data error