The Bolt,shoulder, cataloged under National Stock Number 5306-00-281-2858, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-00-281-2858 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.120 INCHES NOMINAL IN |
| Fastener Length | 1.670 INCHES NOMINAL IN |
| Shoulder Length | 1.270 INCHES NOMINAL FIRST SHOULDER IN |
| Surface Treatment Document and Classification | LC+77-1061,CLASS 3,TYPE 2,FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.4985 INCHES MINIMUM AND 0.4993 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.317 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Shank Unthreaded Hole Diameter | 0.075 INCHES MINIMUM AND 0.080 INCHES MAXIMUM FIRST HOLE IN |
| Criticality Code Justification | AATN |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.744 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Test Data Document | 36659-LC+72-1076 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.560 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 | Y |
| Reference | Meaning |
|---|---|
| 1292692-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-281-2858 is a Bolt,shoulder, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-281-2858: Head Height: 0.120 INCHES NOMINAL IN; Fastener Length: 1.670 INCHES NOMINAL IN; Shoulder Length: 1.270 INCHES NOMINAL FIRST SHOULDER IN; Surface Treatment Document and Classification: LC+77-1061,CLASS 3,TYPE 2,FSCM 36659 MFR REF SINGLE TREATMENT RESPONSE OVERALL. 22 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.