The Bolt,shear, cataloged under National Stock Number 5306-01-480-6410, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Saturn Fasteners Inc. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 18 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-480-6410 |
| Primary Part Number | ST3M571-6H4 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Saturn Fasteners Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN |
| Head Height | 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN |
| Fastener Length | 0.849 INCHES MINIMUM AND 0.879 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.629 INCHES MINIMUM AND 0.649 INCHES MAXIMUM IN |
| Thread Length | 0.614 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 | 0.375 INCHES IN |
| Head Style | DOUBLE HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Width Between Flats | 0.439 INCHES NOMINAL IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.106 INCHES MINIMUM AND 0.111 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 |
|---|---|
| ST3M571-6H4 | Houston Precision Fasteners I Lp (USA) |
| S11-1059-6H4 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M571-6H4 PRIMARY | Saturn Fasteners Inc (USA) |
| 74328-6H4 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GS1030-6H4 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| VS3060-6H4 | Howmet Global Fastening Systems Inc (USA) |
| MB84-6H4 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M571-6H4 PRIMARY | The Boeing Company Div Defense (USA) |
| SLB253-6H4 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M571-6H4 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23033-6H4 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB84-6H4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HP7571-6H4 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| BM3326-6H4 PRIMARY | Huck International, Inc (USA) |
| 11831-6H4 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| BM3326-6H4 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| ST3M571-6H4 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| A1C752-6H4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BM3326-6H4 | 5/9 Secondary reference U.S. Government activity |
| 74328-6H4 | 5/9 Secondary reference Sps Technologies Inc |
| S371-6H4 | 5/9 Secondary reference U.S. Government activity |
| VS3060-6H4 | 5/9 Secondary reference U.S. Government activity |
| 74328-6H4 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-480-6410 is a Bolt,shear, manufactured by Saturn Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-480-6410 has 18 manufacturer part numbers on file: ST3M571-6H4 (Houston Precision Fasteners I Lp), S11-1059-6H4 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M571-6H4 (Saturn Fasteners Inc), 74328-6H4 (Sps Technologies, Llc Dba PB Fasteners), GS1030-6H4 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 13 more.
Key specifications for ST3M571-6H4: Extended Washer Thickness: 0.081 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN; Head Height: 0.378 INCHES MINIMUM AND 0.398 INCHES MAXIMUM IN; Fastener Length: 0.849 INCHES MINIMUM AND 0.879 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.