The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-189-7481, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-189-7481 |
| Primary Part Number | G50344-4-2-12 |
| Item Name | Nut Assembly,self-Locking,gang C |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Nut Quantity | 48 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.125 INCHES NOMINAL BASE IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.203 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Counterbore Diameter | 0.254 INCHES MINIMUM BASE IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.347 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 NUT |
| Material | ALUMINUM 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 |
|---|---|
| G50344-4-2-12 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| ST3M724N2M12-48 | Bristol Industries, Llc (USA) |
| ST3M724N2M12-48 | Fairchild Fasteners Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 10110108 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| ST3M724N2M12-48 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| G12093J2-4-12 | 5/9 Secondary reference Harvard Industries Inc |
| C180-3-4-2-12 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-189-7481 is a Nut Assembly,self-Locking,gang C, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-189-7481 has 3 manufacturer part numbers on file: G50344-4-2-12 (Howmet Global Fastening Systems Inc), ST3M724N2M12-48 (Bristol Industries, Llc), ST3M724N2M12-48 (Fairchild Fasteners Uk Ltd).
Key specifications for G50344-4-2-12: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF); Nut Quantity: 48. 21 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.