The Bolt,shear, cataloged under National Stock Number 5306-01-480-8292, 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 24 specifications, cited from the U.S. Government catalog. The record lists 16 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-480-8292 |
| Primary Part Number | ST3M571-3H4 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Extended Washer Thickness | 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Head Height | 0.255 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Fastener Length | 0.574 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Thread Length | 0.399 INCHES NOMINAL IN |
| Criticality Code Justification | AGAV |
| Hole Configuration Style | DOUBLE HEXAGON FLATS |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Width Between Flats | 0.251 INCHES NOMINAL 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 |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| ST3M571-3H4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M571-3H4 | Huck International, Inc (USA) |
| 11831-3H4 | Reid Products Inc. Dba Reid Products Inc (USA) |
| HP7571-3H4 | Heartland Precision Fasteners Inc (USA) |
| A1C752-3H4 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| BM3326-3H4 | Huck International, Inc (USA) |
| MB84-3H4 | Hi-Shear Corporation (USA) |
| BM3326-3H4 | Heartland Precision Fasteners Inc (USA) |
| MB84-3H4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| S11-1059-3H4 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| 74328-3H4 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M571-3H4 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| GS1030-3H4 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M571-3H4 PRIMARY | The Boeing Company Div Defense (USA) |
| VS3060-3H4 | Howmet Global Fastening Systems Inc (USA) |
| VAL23033-3H4 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 74328-3H4 | 5/9 Secondary reference Sps Technologies Inc |
| VS3060-3H4 | 5/9 Secondary reference U.S. Government activity |
| 74328-3H4 | 5/2 Secondary reference U.S. Government activity |
| S371-3H4 | 5/9 Secondary reference U.S. Government activity |
| BM3326-3H4 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-480-8292 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-480-8292 has 16 manufacturer part numbers on file: ST3M571-3H4 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), ST3M571-3H4 (Huck International, Inc), 11831-3H4 (Reid Products Inc. Dba Reid Products Inc), HP7571-3H4 (Heartland Precision Fasteners Inc), A1C752-3H4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 11 more.
Key specifications for ST3M571-3H4: Extended Washer Thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Head Height: 0.255 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Fastener Length: 0.574 INCHES MINIMUM AND 0.604 INCHES MAXIMUM IN; Surface Treatment Document and Classification: AMS-QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 24 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.