The Bolt,shear, cataloged under National Stock Number 5306-01-057-8129, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-057-8129 |
| Primary Part Number | MS21297-12034 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Extended Washer Thickness | 0.098 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN |
| Head Height | 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN |
| Fastener Length | 3.298 INCHES MINIMUM AND 3.328 INCHES MAXIMUM IN |
| Extended Washer Diameter | 1.384 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN |
| Thread Length | 1.163 INCHES MINIMUM AND 1.213 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN |
| Grip Diameter | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| MS21297-12034 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VFK101G12-034 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21297-12034 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| MS212197-12034 | 3/2 Design control — primary reference U.S. Government activity |
| MS21297-12034 | 5/9 Secondary reference U.S. Government activity |
| MS21297-12034 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-057-8129 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-057-8129 has 3 manufacturer part numbers on file: MS21297-12034 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), VFK101G12-034 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MS21297-12034 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
Key specifications for MS21297-12034: Extended Washer Thickness: 0.098 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN; Head Height: 0.590 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN; Fastener Length: 3.298 INCHES MINIMUM AND 3.328 INCHES MAXIMUM IN; Extended Washer Diameter: 1.384 INCHES MINIMUM AND 1.394 INCHES MAXIMUM IN. 17 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.