The Bolt,shear, cataloged under National Stock Number 5306-00-144-0302, 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19 specifications, cited from the U.S. Government catalog. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-144-0302 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Extended Washer Thickness | 0.082 INCHES NOMINAL IN |
| Head Height | 0.348 INCHES NOMINAL IN |
| Fastener Length | 3.224 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.521 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN |
| Thread Length | 0.589 INCHES MINIMUM AND 0.609 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN |
| Width Between Flats | 0.367 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OR STEEL COMP 4140 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 |
|---|---|
| MS21250-05042 | 5/9 Secondary reference Mercury Aerospace Fasteners Inc |
| MS21250-05042 | 5/1 Secondary reference Howmet Global Fastening Systems Inc |
| MS21250-05042 | 2/2 Government specification standardization U.S. Government activity |
| MS21250-05042 | 5/1 Secondary reference All Manufacturers, Inc. Dba Allied Harbor Aerospace Fasteners |
| MS21250-05042 | 5/1 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| MS21250-05042 | 5/1 Secondary reference U.S. Government activity |
| MS21250-05042 | 5/1 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| MS21250-05042 | 5/9 Secondary reference Allen Mfg Co Sub of Chicago Pneumatic Tool Co |
| MS21250-05042 | 5/9 Secondary reference Chandler Craftsman Controls |
| MS21250-05042 | 5/9 Secondary reference U.S. Government activity |
| MS21250-05042 | 5/1 Secondary reference Huck International, Inc |
| MS21250-05042 | 5/1 Secondary reference U.S. Government activity |
| VFK100G-05042 | 5/1 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| MS21250-05042 | 5/1 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
NSN 5306-00-144-0302 is a Bolt,shear, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-144-0302: Extended Washer Thickness: 0.082 INCHES NOMINAL IN; Head Height: 0.348 INCHES NOMINAL IN; Fastener Length: 3.224 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.