The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-292-8358, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-292-8358 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN |
| Fastener Length | 0.470 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM B633 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.316 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN |
| Hardness Rating | 80.0 ROCKWELL B NOMINAL OVERALL |
| Material Document and Classification | SAE J429 GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.735 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 1 TYPE OR 2 GRADE |
| Surface Treatment | ZINC OVERALL |
| Minimum Tensile Strength | 100000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL 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 |
| Reference | Meaning |
|---|---|
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| 1/2-13UNC-2A X 1/2 GR 2 ZN | 3/2 Design control — primary reference U.S. Government activity |
| MIL-S-1222 | 5/9 Secondary reference U.S. Government activity |
| 122-6818602 PC 54 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5305-01-292-8358 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-486-4794. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-292-8358: Head Height: 0.302 INCHES MINIMUM AND 0.323 INCHES MAXIMUM IN; Fastener Length: 0.470 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM B633 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.316 INCHES MINIMUM AND 0.520 INCHES MAXIMUM IN. 18 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.