The Bolt,machine, cataloged under National Stock Number 5306-00-043-2170, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-043-2170 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Fastener Length | 2.750 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE HEAD |
| Surface Treatment Document and Classification | 04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE THREADS |
| Thread Length | 0.662 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Nominal Thread Diameter | 1.000 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.088 INCHES NOMINAL IN |
| Width Between Flats | 1.428 INCHES MINIMUM AND 1.437 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | CADMIUM HEAD |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.560 INCHES NOMINAL FIRST HOLE IN |
| 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 |
|---|---|
| 756171-109 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-043-2170 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-043-2170: Head Height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Fastener Length: 2.750 INCHES NOMINAL IN; Surface Treatment Document and Classification: 04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE HEAD; Surface Treatment Document and Classification: 04-2056 TYPE 1,FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE THREADS. 19 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.