The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-513-9853, 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 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-513-9853 |
| Primary Part Number | KFN587-3 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Lubrication | DRY FILM LUBRICANT |
| Washer Outside Diameter | 0.303 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Width Across Flats | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-H-6088 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNJC |
| Washer Thickness | 0.082 INCHES MINIMUM AND 0.092 INCHES MAXIMUM IN |
| Material Document and Classification | QQ-A-225/9 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Surface Treatment | ANODIZE OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | ALUMINUM ALLOY 7075 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 |
|---|---|
| KFN587-3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
NSN 5310-01-513-9853 is a Nut,plain,extended Washer,hexago, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-513-9853 has 1 manufacturer part number on file: KFN587-3 (Howmet Global Fastening Systems Inc).
Key specifications for KFN587-3: Lubrication: DRY FILM LUBRICANT; Overall Height: 0.240 INCHES MAXIMUM IN; Washer Outside Diameter: 0.303 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN; Width Across Flats: 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN. 14 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.