The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-734-1992, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-734-1992 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN |
| Fastener Length | 2.75 INCHES NOMINAL IN |
| Thread Length | 1.750 INCHES NOMINAL IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | STM A 354 GRADE BD OR GRADE 8 HARDENED AND TEMPERED AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE LOCKING FEATURE |
| Nominal Thread Diameter | 0.75 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 81349-MIL-DTL-1222J GOVERNMENT SPECIFICATION |
| Width Between Flats | 1.100 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN |
| Locking Feature | SELF-LOCKING LOCKING FEATURE |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 10 |
| Material | STEEL LOCKING FEATURE |
| 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 |
|---|---|
| LOA049060-285 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| M1222RN12C344GHLN | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-1222 | 4/1 Identification reference U.S. Government activity |
| 752-8840871-285 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 67-02-6275B | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| R8321664-285 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5305-01-734-1992 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-734-1992: Head Height: 0.455 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN; Fastener Length: 2.75 INCHES NOMINAL IN; Thread Length: 1.750 INCHES NOMINAL IN; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL. 16 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.