The Bolt,shear, cataloged under National Stock Number 5306-01-144-6271, 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22 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-144-6271 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN |
| Head Height | 0.310 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Fastener Length | 1.888 INCHES MINIMUM AND 1.918 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-8837,TY 2,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.807 INCHES MINIMUM AND 0.817 INCHES MAXIMUM IN |
| Thread Length | 0.753 INCHES MINIMUM AND 0.803 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.514 INCHES MINIMUM AND 0.521 INCHES MAXIMUM IN |
| Grip Diameter | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| MS21297-07018 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-01-144-6271 is a Bolt,shear, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-01-144-6271: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Head Height: 0.310 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN. 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.