The Bolt,machine, cataloged under National Stock Number 5306-01-474-1641, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-474-1641 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.080 INCHES NOMINAL IN |
| Head Height | 0.303 INCHES NOMINAL IN |
| Fastener Length | 1.062 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.458 INCHES NOMINAL IN |
| Thread Length | 0.719 INCHES MINIMUM AND 0.779 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS5616 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.252 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Width Between Flats | 0.3125 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| MS9886-15 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-474-1641 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-474-1641: Extended Washer Thickness: 0.080 INCHES NOMINAL IN; Head Height: 0.303 INCHES NOMINAL IN; Fastener Length: 1.062 INCHES NOMINAL IN; Extended Washer Diameter: 0.458 INCHES NOMINAL IN. 16 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.