The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-228-6256, 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 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-228-6256 |
| Primary Part Number | 3M448N3M7 |
| 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 SINGLE TREATMENT RESPONSE CHANNEL |
| Thread Series | UNF |
| Nut Quantity | 82 |
| Material Document and Classification | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Assembly Overall Height | 0.250 INCHES MAXIMUM IN |
| Surface Treatment | ANODIZE CHANNEL |
| Nut Style | GANG CHANNEL, SELF LOCKING |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 NUT |
| Material | ALUMINUM ALLOY 7075 CHANNEL |
| Nut Spacing | 0.865 INCHES MINIMUM AND 0.885 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 |
|---|---|
| 3M448N3M7 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| G49461-3-7 | 5/9 Secondary reference Dyna Systems Inc |
| C177-3-7 | 5/2 Secondary reference U.S. Government activity |
| 10110179 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 5G49461-3-7 | 5/9 Secondary reference Littlemore Scientific |
| G10851J3-7 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-01-228-6256 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 5310-01-228-6256 has 1 manufacturer part number on file: 3M448N3M7 (The Boeing Company Div Defense).
Key specifications for 3M448N3M7: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNF; Nut Quantity: 82. 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.