The Bolt,shear, cataloged under National Stock Number 5306-00-508-7044, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-508-7044 |
| Primary Part Number | MS21250-14034 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.198 INCHES NOMINAL IN |
| Head Height | 0.808 INCHES NOMINAL IN |
| Fastener Length | 3.389 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Extended Washer Diameter | 1.428 INCHES MINIMUM AND 1.438 INCHES MAXIMUM IN |
| Thread Length | 1.254 INCHES MINIMUM AND 1.274 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.115 INCHES MINIMUM AND 2.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Grip Diameter | 0.8730 INCHES MINIMUM AND 0.8740 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 | 14 |
| Material | STEEL 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 |
|---|---|
| MS21250-14034 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| MS21250-14034 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| MS21250-14034 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| MS21250-14034 | Howmet Global Fastening Systems Inc (USA) |
| VAL21013-14034 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| MS21250-14034 | 3/2 Design control — primary reference U.S. Government activity |
| MS21250-14034 | 5/1 Secondary reference John Hassall Llc Dba Sky Aerospace Products |
| MS21250-14034 | 5/9 Secondary reference U.S. Government activity |
| 5306PL1184578 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-00-508-7044 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-508-7044 has 5 manufacturer part numbers on file: MS21250-14034 (Sps Technologies, Llc Dba PB Fasteners), MS21250-14034 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), MS21250-14034 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), MS21250-14034 (Howmet Global Fastening Systems Inc), VAL21013-14034 (Valley-Todeco, Inc. Dba Arconic Fastening Systems).
Key specifications for MS21250-14034: Extended Washer Thickness: 0.198 INCHES NOMINAL IN; Head Height: 0.808 INCHES NOMINAL IN; Fastener Length: 3.389 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CL 2 FED SPEC ALL TREATMENT RESPONSES 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.