The Bolt,machine, cataloged under National Stock Number 5306-00-442-6948, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-442-6948 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN |
| Head Height | 0.165 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN |
| Fastener Length | 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.417 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN |
| Thread Length | 0.407 INCHES MINIMUM AND 0.469 INCHES MAXIMUM IN |
| Material Document and Classification | MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.156 INCHES MINIMUM AND 0.187 INCHES MAXIMUM IN |
| Width Between Flats | 0.312 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| 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 |
|---|---|
| 7531278P0001 | 3/9 Design control — primary reference U.S. Government activity |
| 7531278P1 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-442-6948 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-442-6948: Extended Washer Thickness: 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Head Height: 0.165 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN; Fastener Length: 0.594 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 18 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.