The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-01-025-9992, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Valley-Todeco, Inc. Dba Arconic Fastening Systems. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-025-9992 |
| Primary Part Number | VAL28009-18 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Valley-Todeco, Inc. Dba Arconic Fastening Systems |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 1.875 INCHES MAXIMUM IN |
| Width Across Flats | 1.364 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Temp Rating | 450.0 FAHRENHEIT NOMINAL DEGF |
| Washer Thickness | 0.170 INCHES MINIMUM IN |
| Material Document and Classification | AMS 6304 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6485 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6487 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.125 INCHES IN |
| Specification/standard Data | 81205-BACN10HR MANUFACTURERS STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Surface Treatment | CADMIUM OVERALL |
| Nut Style | DOUBLE HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL COMP 601 OR STEEL COMP H11 OVERALL |
| 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 |
|---|---|
| 67832-1812 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VAL28009-18 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| BNMM10HR18 | Starrag Technology Gmbh (DEU) |
| BMNN10HR18 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| BACN10HR18CD | 7/2 Vendor item drawing reference U.S. Government activity |
| 7832-18 | 5/9 Secondary reference Electromagnetic Research Corp |
| BACN10HR18 | 5/9 Secondary reference U.S. Government activity |
| RMLH22-18 | 5/9 Secondary reference Harvard Industries Inc |
| BMNN10HR18 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-025-9992 is a Nut,self-Locking,extended Washer, manufactured by Valley-Todeco, Inc. Dba Arconic Fastening Systems, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-025-9992 has 4 manufacturer part numbers on file: 67832-1812 (Sps Technologies, Llc Dba PB Fasteners), VAL28009-18 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), BNMM10HR18 (Starrag Technology Gmbh), BMNN10HR18 (Huck International, Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-394-3943. Verify interchangeability with system specifications before substitution.
Key specifications for VAL28009-18: Lubrication: DRY FILM LUBRICANT; Overall Height: 1.370 INCHES MAXIMUM IN; Washer Outside Diameter: 1.875 INCHES MAXIMUM IN; Width Across Flats: 1.364 INCHES MINIMUM AND 1.377 INCHES MAXIMUM IN. 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.