The Bolt,shear, cataloged under National Stock Number 5306-01-071-8761, 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 22 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-071-8761 |
| Primary Part Number | MS21297-08033 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN |
| Head Height | 0.440 INCHES MINIMUM AND 0.460 INCHES MAXIMUM IN |
| Fastener Length | 2.901 INCHES MINIMUM AND 2.931 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-8837 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.922 INCHES MINIMUM AND 0.932 INCHES MAXIMUM IN |
| Thread Length | 0.829 INCHES MINIMUM AND 0.879 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 | 0.500 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.052 INCHES MINIMUM AND 2.072 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Grip Diameter | 0.4985 INCHES MINIMUM AND 0.4995 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 |
| Part Number | Manufacturer |
|---|---|
| MS21297-08033 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VFK101G8-033 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MS21297-08033 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MS21297-08033 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 5306PL1801765 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS21297-08033 | 5/9 Secondary reference U.S. Government activity |
| MS21297-08033 | 3/2 Design control — primary reference U.S. Government activity |
| 5306PL0894754 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS21297-08033 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-071-8761 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 5306-01-071-8761 has 4 manufacturer part numbers on file: MS21297-08033 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), VFK101G8-033 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MS21297-08033 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MS21297-08033 (Huck International, Inc).
Key specifications for MS21297-08033: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.062 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN; Head Height: 0.440 INCHES MINIMUM AND 0.460 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.