The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-303-5629, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-303-5629 |
| Item Name | Screw,cap,hexagon Head |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 35.0 MILLIMETERS NOMINAL MM |
| Surface Treatment Document and Classification | QQ-Z-325 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Pitch in Millimeters | 1.0 |
| Thread Length | 18.0 MILLIMETERS MINIMUM AND 23.0 MILLIMETERS MAXIMUM MM |
| Nominal Thread Diameter | 6.0 MILLIMETERS MM |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM MM |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Material | STEEL PROPERTY CLASS 10.9 OVERALL |
| Thread Series Designator | M |
| 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 |
|---|---|
| 12485434-080 | C/1 Advisory reference — outside the item-of-supply concept U S Army Tank Automotive Command Amsta-Im-Mm |
| B18231B06040N | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-303-5629 is a Screw,cap,hexagon Head, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-303-5629: Head Height: 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 35.0 MILLIMETERS NOMINAL MM; Surface Treatment Document and Classification: QQ-Z-325 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 13 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.