The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-372-0792, 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 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-372-0792 |
| Primary Part Number | 53A-00-231-12 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Head Height | 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN |
| Fastener Length | 1.339 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN |
| Thread Length | 1.370 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-N-286 COLD DRAWN AND AGED FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.9220 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE |
| Locking Feature | STRIP THREADS |
| Minimum Tensile Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 90000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | NICKEL ALLOY K-500 FASTENER |
| Material | PLASTIC POLYAMIDE NYLON THREADS |
| 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 |
|---|---|
| 53A-00-231-12 | Air Specialties, Inc (USA) |
| 53A-00-231-12 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 53A-00-231-12 | 5/9 Secondary reference Alpha Aerospace Hardware Inc |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-372-0792 is a Screw,cap,hexagon Head, manufactured by Naval Sea Systems Command, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-372-0792 has 2 manufacturer part numbers on file: 53A-00-231-12 (Air Specialties, Inc), 53A-00-231-12 (Naval Sea Systems Command).
Key specifications for 53A-00-231-12: Head Height: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN; Fastener Length: 1.339 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN; Thread Length: 1.370 INCHES MAXIMUM IN; Material Document and Classification: QQ-N-286 COLD DRAWN AND AGED FED SPEC SINGLE MATERIAL RESPONSE FASTENER. 17 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.