The Bolt,machine, cataloged under National Stock Number 5306-01-071-6473, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 21 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-071-6473 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 3.265 INCHES MINIMUM AND 3.312 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN |
| Hardness Rating | 26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL |
| Hole Configuration Style | HEXAGON LONGITUDINAL HOLE |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.734 INCHES MINIMUM AND 2.766 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8630 OR STEEL COMP 8735 OR STEEL COMP 4130 OR STEEL COMP 4037 OVERALL |
| Hole Quantity | 6 |
| Thread Series Designator | UNF |
| Hole Type | DRILLED |
| Hole Diameter | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM 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 |
|---|---|
| MS20073-03-32 | 5/9 Secondary reference U.S. Government activity |
| NASM20073 | 5/1 Secondary reference U.S. Government activity |
| MS20073-03-32 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-071-6473 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-326-2144, 5306-01-520-5058. Verify interchangeability with system specifications before substitution.
Key specifications for 5306-01-071-6473: Head Height: 0.172 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Fastener Length: 3.265 INCHES MINIMUM AND 3.312 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.499 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN. 21 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.