The Bolt,shear, cataloged under National Stock Number 5306-01-147-9762, 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 Div PB Fasteners. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-147-9762 |
| Primary Part Number | ST3M571-12H25 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| Status | ACTIVE |
| Extended Washer Thickness | 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN |
| Head Height | 0.701 INCHES MINIMUM AND 0.721 INCHES MAXIMUM IN |
| Fastener Length | 2.599 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.220 INCHES MINIMUM AND 1.230 INCHES MAXIMUM IN |
| Thread Length | 1.027 INCHES MINIMUM AND 1.077 INCHES MAXIMUM IN |
| Hole Configuration Style | DOUBLE HEXAGON LONGITUDINAL HOLE |
| Material Document and Classification | 23-112 TYPE A,FSCM 76301 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.552 INCHES MINIMUM AND 1.572 INCHES MAXIMUM IN |
| Width Between Flats | 0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM IN |
| Grip Diameter | 0.7485 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST3M571-12H25 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GS1030-12H25 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| MB84-12H25 PRIMARY | Hi-Shear Corporation (USA) |
| S11-1059-12H25 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| PBF23T-12PH25 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23033-12H25 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M571-12H25 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M571-12H25 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M571-12H25 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| MB84-12H25 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC752-12H25 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M571-12H25 | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| BM3326-12H25 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS3060-12H25 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| ST3M571-12H25 | 5/9 Secondary reference Sps Technologies Inc |
| S371-12H25 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| BM3326-12H25 | 5/9 Secondary reference U.S. Government activity |
| 74328-12H25 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 74328-12H25 | 3/2 Design control — primary reference U.S. Government activity |
| S371-12H25 | 5/9 Secondary reference U.S. Government activity |
| VS3060-12H25 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-147-9762 is a Bolt,shear, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-147-9762 has 12 manufacturer part numbers on file: ST3M571-12H25 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), GS1030-12H25 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), MB84-12H25 (Hi-Shear Corporation), S11-1059-12H25 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), PBF23T-12PH25 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 7 more.
Key specifications for ST3M571-12H25: Extended Washer Thickness: 0.168 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Head Height: 0.701 INCHES MINIMUM AND 0.721 INCHES MAXIMUM IN; Fastener Length: 2.599 INCHES MINIMUM AND 2.629 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 23 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.