The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-045-2474, 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 22 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-045-2474 |
| Primary Part Number | ST3M724N2M9-64 |
| 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 |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE AND MMS425 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE CHANNEL |
| Thread Series | UNF |
| Nut Quantity | 64 |
| Temp Rating | 350.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Channel Height | 0.203 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Specification/standard Data | 76301-ST3-724 MANUFACTURERS STANDARD |
| Counterbore Diameter | 0.254 INCHES MINIMUM NUT IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.347 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE AND PAINT CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 NUT |
| Nut Spacing | 1.125 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 |
|---|---|
| ST3M724N2M9-64 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M724N2M9-64 | Bristol Industries, Llc (USA) |
| G50344-4-2-9 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 10122038 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| G12093J2-4-9 | 5/9 Secondary reference Harvard Industries Inc |
| ST3M724N2M9-64 | 5/2 Secondary reference U.S. Government activity |
| G50344-4-2-9 | 5/9 Secondary reference Howmet Global Fastening Systems Inc. Div Microdot Products |
NSN 5310-01-045-2474 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 5310-01-045-2474 has 3 manufacturer part numbers on file: ST3M724N2M9-64 (The Boeing Company Div Defense), ST3M724N2M9-64 (Bristol Industries, Llc), G50344-4-2-9 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M724N2M9-64: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE AND MMS425 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE CHANNEL; Thread Series: UNF; Nut Quantity: 64. 22 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.