The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-00-389-9341, 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 23 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-389-9341 |
| Primary Part Number | ST3M448N3M6 |
| 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 1ST TREATMENT RESPONSE AND MMS425 FSCM 76301 MFR REF 2ND TREATMENT RESPONSE CHANNEL |
| Thread Series | UNF |
| Nut Quantity | 115 |
| Temp Rating | 300.0 FAHRENHEIT NOMINAL DEGF |
| Removable Nut Manufacturer Part Number | ST3M445C3M1 |
| Material Document and Classification | QQ-A-250/13,T6 FED SPEC SINGLE MATERIAL RESPONSE CHANNEL |
| Material Document and Classification | AMS 5525 FED SPEC SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Channel Height | 0.250 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Specification/standard Data | 76301-ST3-448 MANUFACTURERS STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.250 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL AND COPPER ALLOY NUT |
| Surface Treatment | ANODIZE AND PAINT CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Nut Spacing | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM IN |
| Channel Style | STRAIGHT TYPE |
| Removable Nut Manufacturer Code | 76301 |
| 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 |
|---|---|
| G49460-3-6 | Satair A/s (DNK) |
| 649461-3-6 | Satair A/s (DNK) |
| G4961-3-6 | Satair A/s (DNK) |
| ST3M448N3M6 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| G10851J3-6 | 5/9 Secondary reference Harvard Industries Inc |
| ST3M448N3M6 | 5/9 Secondary reference Hardinge Bros Inc |
| ST3M448N3M6 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 649461-3-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| G10884J02-6-6 | C/1 Advisory reference — outside the item-of-supply concept Harvard Industries Inc |
| ST3M448N3M6 | 5/9 Secondary reference U.S. Government activity |
| 10121345 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| G4961-3-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| G49460-3-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
NSN 5310-00-389-9341 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 5310-00-389-9341 has 4 manufacturer part numbers on file: G49460-3-6 (Satair A/s), 649461-3-6 (Satair A/s), G4961-3-6 (Satair A/s), ST3M448N3M6 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M448N3M6: 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: 115. 23 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.