The Bolt,machine, cataloged under National Stock Number 5306-01-528-4436, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-528-4436 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.070 INCHES MINIMUM IN |
| Head Height | 0.328 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN |
| Fastener Length | 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Thread Length | 0.876 INCHES MINIMUM AND 0.936 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.252 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Width Between Flats | 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN |
| Grip Diameter | 0.280 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 630 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 |
|---|---|
| MS9734-15 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-528-4436 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-528-4436: Extended Washer Thickness: 0.070 INCHES MINIMUM IN; Head Height: 0.328 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN; Fastener Length: 1.178 INCHES MINIMUM AND 1.198 INCHES MAXIMUM IN; Extended Washer Diameter: 0.490 INCHES MINIMUM AND 0.510 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.