The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-00-613-8296, 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 17 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-613-8296 |
| Primary Part Number | ST3M448C4M8-72 |
| 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 | UNF |
| Nut Quantity | 72 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Nut Counterbore Depth | 0.062 INCHES MINIMUM NUT IN |
| Features Provided | FLOATING NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.281 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 | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM 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 |
|---|---|
| ST3M448C4M8-72 | The Boeing Company Div Defense (USA) |
| ST3M448C4M8-72 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| G10851-4-8 | 3/9 Design control — primary reference Harvard Industries Inc |
| ST3M448C4M8-72 | 5/2 Secondary reference U.S. Government activity |
| 3M448C4M8 | C/1 Advisory reference — outside the item-of-supply concept The Boeing Company Div Defense |
NSN 5310-00-613-8296 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 5310-00-613-8296 has 2 manufacturer part numbers on file: ST3M448C4M8-72 (The Boeing Company Div Defense), ST3M448C4M8-72 (Howmet Global Fastening Systems Inc).
Key specifications for ST3M448C4M8-72: Lubrication: DRY FILM LUBRICANT; Thread Series: UNF; Nut Quantity: 72; Material Document and Classification: AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE NUT. 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.