The Nut Assembly,self-Locking,gang C, cataloged under National Stock Number 5310-01-224-2400, 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 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-224-2400 |
| Primary Part Number | 3M448N3M20-28 |
| 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 | 28 |
| 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 |
| Assembly Overall Height | 0.250 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE NUT |
| Surface Treatment | ANODIZE CHANNEL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY 7075 CHANNEL |
| Nut Spacing | 2.500 INCHES NOMINAL 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 |
|---|---|
| 3M448N3M20-28 PRIMARY | The Boeing Company Div Defense (USA) |
| 3M448N3M20-28 | Howmet Global Fastening Systems Inc (USA) |
| 3M448N3M20-28 | Bristol Industries, Llc (USA) |
| Reference | Meaning |
|---|---|
| 3M448N3M20-28 | 5/2 Secondary reference U.S. Government activity |
NSN 5310-01-224-2400 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 5310-01-224-2400 has 3 manufacturer part numbers on file: 3M448N3M20-28 (The Boeing Company Div Defense), 3M448N3M20-28 (Howmet Global Fastening Systems Inc), 3M448N3M20-28 (Bristol Industries, Llc).
Key specifications for 3M448N3M20-28: Lubrication: DRY FILM LUBRICANT; Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE CHANNEL; Thread Series: UNF; Nut Quantity: 28. 15 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.