The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-681-5244, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-681-5244 |
| Primary Part Number | S9515-A7-MMA-020 FIG 7-23-37 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| Fastener Length | 1.250 INCHES NOMINAL IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL UNS K04100 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| S9515-A7-MMA-020 FIG 7-23-37 | Naval Sea Systems Command (USA) |
| V89013816114 | Atlantic Fasteners Co Llc (USA) |
| S9515-A7-MMA-020 TBL 7-30-37 | Naval Sea Systems Command (USA) |
| NV1028129 FIND 178 | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| AES01C375A25AW9L71 | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| AES01C375A25AW9L71 | 5/9 Secondary reference U.S. Government activity |
| ASME B18.24 | 3/1 Design control — primary reference The American Society of Mechanical Engineers |
NSN 5305-01-681-5244 is a Screw,cap,hexagon Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-681-5244 has 5 manufacturer part numbers on file: S9515-A7-MMA-020 FIG 7-23-37 (Naval Sea Systems Command), V89013816114 (Atlantic Fasteners Co Llc), S9515-A7-MMA-020 TBL 7-30-37 (Naval Sea Systems Command), NV1028129 FIND 178 (Hamilton Sundstrand Corporation Dba Collins Aerospace), AES01C375A25AW9L71 (The American Society of Mechanical Engineers).
Key specifications for S9515-A7-MMA-020 FIG 7-23-37: Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Fastener Length: 1.250 INCHES NOMINAL IN; Thread Length: 1.000 INCHES NOMINAL IN; Nominal Thread Diameter: 0.375 INCHES IN. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.