The Bolt,shear, cataloged under National Stock Number 5306-01-259-6341, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 13 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-259-6341 |
| Primary Part Number | ST3M753-3-8 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Head Height | 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Fastener Length | 0.884 INCHES MINIMUM AND 0.914 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Thread Length | 0.374 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.235 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 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 |
|---|---|
| ST3M753-3-8 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| MB156-3-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| VFK600-3-8 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M753-3-8 PRIMARY | The Boeing Company Div Defense (USA) |
| S343-3-8 | Huck International, Inc (USA) |
| VS3190-3-8 | Howmet Global Fastening Systems Inc (USA) |
| PBF1267-3-8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M753-3-8 | Howmet Global Fastening Systems Inc (USA) |
| MB156-3-8 | Hi-Shear Corporation (USA) |
| AIC763-3-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M753-3-8 | Huck International, Inc (USA) |
| GS1032-3-8 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11829-3-8 | Reid Products Inc. Dba Reid Products Inc (USA) |
| Reference | Meaning |
|---|---|
| S343-3-8 | 5/9 Secondary reference U.S. Government activity |
| ST3M753-3-8 | 5/9 Secondary reference Pruitt Energy Sources Inc |
| 122897-3-8 | 5/2 Secondary reference U.S. Government activity |
| VS3190-3-8 | 5/9 Secondary reference U.S. Government activity |
| ST3M753-3-8 | 5/9 Secondary reference Sps Technologies Inc |
NSN 5306-01-259-6341 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-259-6341 has 13 manufacturer part numbers on file: ST3M753-3-8 (Fastener Innovation Technology, Inc. Dba F I T), MB156-3-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), VFK600-3-8 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), ST3M753-3-8 (The Boeing Company Div Defense), S343-3-8 (Huck International, Inc) and 8 more.
1 possible match (shared part number, not a government interchangeability claim): 6540-01-628-2328. Verify interchangeability with system specifications before substitution.
Key specifications for ST3M753-3-8: Extended Washer Thickness: 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Head Height: 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Fastener Length: 0.884 INCHES MINIMUM AND 0.914 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 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.