The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-161-4010, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-161-4010 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.902 INCHES MINIMUM AND 0.974 INCHES MAXIMUM IN |
| Fastener Length | 13.840 INCHES MINIMUM AND 14.060 INCHES MAXIMUM IN |
| Thread Length | 13.310 INCHES NOMINAL IN |
| Hardness Rating | 80.0 ROCKWELL B MINIMUM OVERALL |
| Material Document and Classification | QQ-N-281 CL A OR CL B FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 1.500 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 2.175 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN |
| Locking Feature | PELLET OR STRIP OR PATCH THREADS |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 40000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 6 |
| Material | NICKEL ALLOY 400 OR NICKEL ALLOY R-405 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 |
|---|---|
| 203-4678510 ITEM 19 | 5/9 Secondary reference U.S. Government activity |
| 4678510 ITEM 19 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-161-4010 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-161-4010: Head Height: 0.902 INCHES MINIMUM AND 0.974 INCHES MAXIMUM IN; Fastener Length: 13.840 INCHES MINIMUM AND 14.060 INCHES MAXIMUM IN; Thread Length: 13.310 INCHES NOMINAL IN; Hardness Rating: 80.0 ROCKWELL B MINIMUM OVERALL. 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.