The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-422-8601, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-422-8601 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN |
| Fastener Length | 3.906 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | FF-S-85 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.500 INCHES MINIMUM AND 1.727 INCHES MAXIMUM IN |
| Material Document and Classification | FF-S-85 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Departure From Cited Document | AS MODIFIED BY MATERIAL |
| Width Between Flats | 0.922 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 316 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 |
|---|---|
| MS35307-472 | 5/9 Secondary reference U.S. Government activity |
| 5/8-11UNC-2A X 4" LG GR 316 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MS35307-472S316 | 2/2 Government specification standardization U.S. Government activity |
| MS35307-472 CRE S 316 ONLY | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5305-01-422-8601 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-422-8601: Head Height: 0.378 INCHES MINIMUM AND 0.403 INCHES MAXIMUM IN; Fastener Length: 3.906 INCHES MINIMUM AND 4.000 INCHES MAXIMUM IN; Surface Treatment Document and Classification: FF-S-85 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.500 INCHES MINIMUM AND 1.727 INCHES MAXIMUM IN. 15 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.