The Bolt,shoulder, cataloged under National Stock Number 5306-01-044-7447, 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 15 specifications, cited from the U.S. Government catalog. The record lists 17 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 12 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-044-7447 |
| Primary Part Number | ST3M497-5-8 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 0.951 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN |
| Shoulder Length | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN |
| Shoulder Diameter | 0.327 INCHES MINIMUM AND 0.328 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.441 INCHES MINIMUM AND 0.508 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 76301-ST3-497 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| ST3M497-5-8 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M497-5-8 | West Coast Aerospace, Inc. (USA) |
| VS3037-5-8 | Howmet Global Fastening Systems Inc (USA) |
| ST3M497-5-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M497-5-8 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M497-5-8 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M497-5-8 | Houston Precision Fasteners I Lp (USA) |
| ST3M497-5-8 | Howmet Global Fastening Systems Inc (USA) |
| ST3M497-5-8 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| ST3M497-5-8 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| ST3M497-5-8 | Heartland Precision Fasteners Inc (USA) |
| BM17019-5-8X | Huck International, Inc (USA) |
| ST3M497-5-8 | Reid Products Inc. Dba Reid Products Inc (USA) |
| ST3M497-5-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M497-5-8 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M497-5-8 | Hi-Shear Corporation (USA) |
| ST3M497-5-8 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BM17019-5-8X | 5/9 Secondary reference U.S. Government activity |
| ST3M497-5-8 | 5/2 Secondary reference U.S. Government activity |
| MB88-5-8 | 5/9 Secondary reference Hi-Shear Corporation |
| VAL23607-5-8 | 5/9 Secondary reference Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| ST3M497-5-8 | 5/2 Secondary reference U.S. Government activity |
| S11-1061-5-8 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| 109453-5-8X | 5/9 Secondary reference U.S. Government activity |
| 109450-5-8 | 5/9 Secondary reference U.S. Government activity |
| PBF1254-5-8 | 5/9 Secondary reference Sps Technologies Llc Dba PB Fasteners Div PB Fasteners |
| MA5497-5-8 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| 109453-5-8X | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS3037-5-8 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-044-7447 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-044-7447 has 17 manufacturer part numbers on file: ST3M497-5-8 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), ST3M497-5-8 (West Coast Aerospace, Inc.), VS3037-5-8 (Howmet Global Fastening Systems Inc), ST3M497-5-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), ST3M497-5-8 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 12 more.
Key specifications for ST3M497-5-8: Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN; Fastener Length: 0.951 INCHES MINIMUM AND 0.998 INCHES MAXIMUM IN; Shoulder Length: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM FIRST SHOULDER IN; Shoulder Diameter: 0.327 INCHES MINIMUM AND 0.328 INCHES MAXIMUM FIRST SHOULDER IN. 15 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.