The Bolt,shear, cataloged under National Stock Number 5306-01-059-1949, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-059-1949 |
| Primary Part Number | MS21297-14054 |
| 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 | 0.116 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN |
| Head Height | 0.554 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN |
| Fastener Length | 4.723 INCHES MINIMUM AND 4.753 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-8837 TY 2 CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Thread Length | 1.338 INCHES MINIMUM AND 1.388 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | AMS 6487 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 3.365 INCHES MINIMUM AND 3.385 INCHES MAXIMUM IN |
| Head Minor Diameter | 1.034 INCHES MINIMUM AND 1.042 INCHES MAXIMUM IN |
| Grip Diameter | 0.8730 INCHES MINIMUM AND 0.8740 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 | 14 |
| 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 | F |
| Part Number | Manufacturer |
|---|---|
| MS21297-14054 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MS21297-14054 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MS21297-14054 | Acufast Aircraft Products (USA) |
| Reference | Meaning |
|---|---|
| MS21297-14054 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-059-1949 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 5306-01-059-1949 has 3 manufacturer part numbers on file: MS21297-14054 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), MS21297-14054 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MS21297-14054 (Acufast Aircraft Products).
Key specifications for MS21297-14054: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.116 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN; Head Height: 0.554 INCHES MINIMUM AND 0.594 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.