The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-148-3703, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Eaton Limited. Government technical data includes 16 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-148-3703 |
| Primary Part Number | 754/7/36525/000 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Eaton Limited |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.520 INCHES MAXIMUM IN |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Temp Rating | 450.0 FAHRENHEIT MAXIMUM DEGF |
| Washer Thickness | 0.055 INCHES NOMINAL IN |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 754/7/36525/000 | Eaton Limited (GBR) |
| ST3M787-5 | The Boeing Company Div Defense (USA) |
| DSR04605-1003 | Meggitt Aerospace Limited (GBR) |
| Reference | Meaning |
|---|---|
| 10109821 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| BH787-5 | 5/9 Secondary reference Bristol Industries, Llc |
| E12695-5 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| E12695-5 | 5/9 Secondary reference Harvard Industries Inc |
| ST3M787-5 | 3/2 Design control — primary reference U.S. Government activity |
| 79317CM-524 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5310-01-148-3703 is a Nut,self-Locking,extended Washer, manufactured by Eaton Limited, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-148-3703 has 3 manufacturer part numbers on file: 754/7/36525/000 (Eaton Limited), ST3M787-5 (The Boeing Company Div Defense), DSR04605-1003 (Meggitt Aerospace Limited).
Key specifications for 754/7/36525/000: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.313 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN; Washer Outside Diameter: 0.520 INCHES MAXIMUM IN; Width Across Flats: 0.367 INCHES MINIMUM AND 0.378 INCHES MAXIMUM IN. 16 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.