The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-231-7451, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-231-7451 |
| Primary Part Number | ST3M724C2M12-48 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 48 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Channel Height | 0.203 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.347 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Material | IRON ALLOY 660 NUT |
| Material | STEEL CORROSION RESISTING CHANNEL |
| Nut Spacing | 1.500 INCHES MINIMUM IN |
| Channel Style | STRAIGHT TYPE |
| 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 |
|---|---|
| ST3M724C2M12-48 | Bristol Industries, Llc (USA) |
| ST3M724C2M12-48 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M724C2M12-48 | Fairchild Fasteners Uk Ltd (GBR) |
| ST3M724C2M12-48 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| G12093-2-4-12 | 5/9 Secondary reference Harvard Industries Inc |
| ST3M724C2M12-48 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-231-7451 is a Nut Assembly,self-Locking,gang C, manufactured by The Boeing Company Div Defense, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-231-7451 has 4 manufacturer part numbers on file: ST3M724C2M12-48 (Bristol Industries, Llc), ST3M724C2M12-48 (The Boeing Company Div Defense), ST3M724C2M12-48 (Fairchild Fasteners Uk Ltd), ST3M724C2M12-48 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M724C2M12-48: Lubrication: DRY FILM LUBRICANT; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nut Quantity: 48; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE NUT. 16 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.