The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-706-3131, 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17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-706-3131 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN |
| Fastener Length | 2.215 INCHES MINIMUM AND 2.406 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-416, TYPE II, CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 2.151 INCHES MINIMUM AND 2.374 INCHES MAXIMUM IN |
| Material Document and Classification | AMS6382 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OR AMS6415 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| Single Shear Strength | ERR-060 |
| Nominal Thread Diameter | 0.1640 INCHES IN |
| Hazardous Substances | CADMIUM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS1801 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OVERALL |
| Thread Series Designator | UNJC |
| 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 |
|---|---|
| NAS1801 REV 4 | D/9 Drawing number reference only U.S. Government activity |
| NAS1801-08-38 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-706-3131 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5305-01-706-3132, 5305-01-706-3133. Verify interchangeability with system specifications before substitution.
Key specifications for 5305-01-706-3131: Head Height: 0.096 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN; Fastener Length: 2.215 INCHES MINIMUM AND 2.406 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS-QQ-P-416, TYPE II, CLASS 2 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 2.151 INCHES MINIMUM AND 2.374 INCHES MAXIMUM IN. 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.