The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-175-2811, 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 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-175-2811 |
| Primary Part Number | 9131M74P24 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Washer Outside Diameter | 0.579 INCHES NOMINAL IN |
| Width Across Flats | 0.435 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Criticality Code Justification | MATT |
| Washer Thickness | 0.025 INCHES NOMINAL IN |
| Material Document and Classification | AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.375 INCHES IN |
| Nut Style | CASTELLATED HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 9131M74P24 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| 9131M74P24 | General Electric Company (USA) |
| 73783CM624 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| SMTE9925-6 | 3/9 Design control — primary reference Harvard Industries Inc |
| H49403-6 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 9131M74P04 | 5/9 Secondary reference General Electric Company |
| 73783CM624 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-175-2811 is a Nut,plain,extended Washer,hexago, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-175-2811 has 3 manufacturer part numbers on file: 9131M74P24 (Howmet Global Fastening Systems Inc), 9131M74P24 (General Electric Company), 73783CM624 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 9131M74P24: Overall Height: 0.190 INCHES NOMINAL IN; Washer Outside Diameter: 0.579 INCHES NOMINAL IN; Width Across Flats: 0.435 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL JOINT FINE (UNJF). 12 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.