The Bolt,machine, cataloged under National Stock Number 5306-01-349-4171, 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16 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-349-4171 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.226 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Fastener Length | 1.276 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN |
| Thread Length | 1.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Locking Feature | STRIP THREADS |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING FEATURE |
| Material | NICKEL ALLOY 400 FASTENER |
| 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 |
| Reference | Meaning |
|---|---|
| MS35311-63 | 2/2 Government specification standardization U.S. Government activity |
| 53A-00-193-22 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 53A-00-193-22 | 5/9 Secondary reference Illinois Tool Wks Inc Linac Div |
| 53A-00-193-22 | 5/9 Secondary reference Itw Heartland Components Inc |
NSN 5306-01-349-4171 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-349-4171: Head Height: 0.226 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN; Fastener Length: 1.276 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN; Thread Length: 1.000 INCHES NOMINAL IN; Material Document and Classification: QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FASTENER. 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.