The Bolt,machine, cataloged under National Stock Number 5306-01-133-0091, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-133-0091 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM0.211 INCHES MAXIMUM IN |
| Fastener Length | 1.600 INCHES MINIMUM AND 1.600 INCHES MINIMUM AND 1.780 INCHES MAXIMUM1.780 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | BX-13 MFR REF SINGLE TREATMENT RESPONSE OVERALLBX-13 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN |
| Hardness Rating | 23.0 ROCKWELL C MINIMUM AND 23.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM OVERALL32.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES0.312 INCHES IN |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 0.720 INCHES NOMINAL0.720 INCHES NOMINAL IN |
| Width Between Flats | 0.489 INCHES MINIMUM AND 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM0.500 INCHES MAXIMUM IN |
| Surface Treatment | DICHROMATE OVERALLDICHROMATE OVERALL |
| Thread Class | 2A2A |
| Thread Quantity Per Inch | 2424 |
| Material | STEEL COMP 1030 OR STEEL COMP 1031 OR STEEL COMP 1033 OR STEEL COMP 1034 OVERALL |
| Thread Series Designator | UNFUNF |
| 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 |
|---|---|
| 318607 | 3/9 Design control — primary reference Bendix Corp the Brake and Steering Div |
NSN 5306-01-133-0091 is a Bolt,machine, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-133-0091: Head Height: 0.195 INCHES MINIMUM AND 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM0.211 INCHES MAXIMUM IN; Fastener Length: 1.600 INCHES MINIMUM AND 1.600 INCHES MINIMUM AND 1.780 INCHES MAXIMUM1.780 INCHES MAXIMUM IN; Surface Treatment Document and Classification: BX-13 MFR REF SINGLE TREATMENT RESPONSE OVERALLBX-13 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.880 INCHES NOMINAL0.880 INCHES NOMINAL IN. 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.