The Bolt,machine, cataloged under National Stock Number 5306-00-449-6512, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is General Motors Corp. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-449-6512 |
| Primary Part Number | 838647 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | General Motors Corp |
| Status | ACTIVE |
| Head Height | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN |
| Fastener Length | 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Thread Length | 0.250 INCHES MINIMUM IN |
| Material Document and Classification | QQ-S-633,CANC FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-663,CANC FED SPEC 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.125 INCHES NOMINAL IN |
| Width Between Flats | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Locking Feature | DISTORTIONS BEARING SURFACE OF HEAD |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP 1211 OR STEEL COMP 1212 OR STEEL COMP 1035 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 |
| Part Number | Manufacturer |
|---|---|
| 838647 PRIMARY | General Motors Corp (USA) |
NSN 5306-00-449-6512 is a Bolt,machine, manufactured by General Motors Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-449-6512 has 1 manufacturer part number on file: 838647 (General Motors Corp).
Key specifications for 838647: Head Height: 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM IN; Fastener Length: 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN; Thread Length: 0.250 INCHES MINIMUM IN; Material Document and Classification: QQ-S-633,CANC FED SPEC 1ST MATERIAL RESPONSE OR QQ-S-663,CANC FED SPEC 2ND MATERIAL RESPONSE OR 66 FED STD 3RD MATERIAL RESPONSE OVERALL. 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.