The Bolt,shoulder, cataloged under National Stock Number 5306-01-141-7890, 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 17 specifications, cited from the U.S. Government catalog. The record lists 11 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-141-7890 |
| Primary Part Number | ST3M497-3-1 |
| Item Name | Bolt,shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN |
| Fastener Length | 0.378 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN |
| Shoulder Length | 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM FIRST SHOULDER IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Shoulder Diameter | 0.2021 INCHES MINIMUM AND 0.2026 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.305 INCHES MINIMUM AND 0.372 INCHES MAXIMUM IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE HEAD |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.376 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| 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 |
|---|---|
| ST3M497-3-1 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M497-3-1 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| PBF1254-3-1 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23607-3-1 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB88-3-1 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| S11-1061-3-1 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| HP5497-3-1 | Heartland Precision Fasteners Inc (USA) |
| VS3037-3-1 | Howmet Global Fastening Systems Inc (USA) |
| ST3M497-3-1 PRIMARY | The Boeing Company Div Defense (USA) |
| MB88-3-1 | Hi-Shear Corporation (USA) |
| BM17019-3-1X PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| VS3037-3-1 | 5/9 Secondary reference U.S. Government activity |
| BM17019-3-1X | 5/9 Secondary reference U.S. Government activity |
| ST3M497-3-1 | 5/9 Secondary reference Sps Technologies Inc |
| HP5497-3-1 | 5/9 Secondary reference Pruitt Energy Sources Inc |
| 109450-3-1 | 5/2 Secondary reference U.S. Government activity |
| MA5497-3-1 | 5/9 Secondary reference Abounding Security Inc Div of Maa Corp |
| 109450-3-1 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-141-7890 is a Bolt,shoulder, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-141-7890 has 11 manufacturer part numbers on file: ST3M497-3-1 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), ST3M497-3-1 (Fastener Innovation Technology, Inc. Dba F I T), PBF1254-3-1 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VAL23607-3-1 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), MB88-3-1 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 6 more.
Key specifications for ST3M497-3-1: Head Height: 0.130 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN; Fastener Length: 0.378 INCHES MINIMUM AND 0.425 INCHES MAXIMUM IN; Shoulder Length: 0.053 INCHES MINIMUM AND 0.073 INCHES MAXIMUM FIRST SHOULDER IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 17 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.