The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-714-8071, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Army, United States Department of the Dba Rock Island Arsenal Jmtc. Government technical data includes 16 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 | 5310-00-714-8071 |
| Primary Part Number | 7148071 |
| Item Name | Nut,self-Locking,extended Washer |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Washer Outside Diameter | 2.110 INCHES MINIMUM AND 2.140 INCHES MAXIMUM IN |
| Width Across Flats | 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNF |
| Hardness Rating | 21.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM |
| Washer Thickness | 0.391 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN |
| Material Document and Classification | ASTM A400 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.375 INCHES IN |
| Locking Feature | FREE-RUNNING ALL METAL DESIGN |
| Surface Treatment | OXIDE OVERALL |
| Countersink Angle | 90.0 DEGREES NOMINAL NUT |
| Nut Style | HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL 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 |
|---|---|
| 7148071 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-00-714-8071 is a Nut,self-Locking,extended Washer, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-714-8071 has 1 manufacturer part number on file: 7148071 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 7148071: Overall Height: 1.000 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN; Washer Outside Diameter: 2.110 INCHES MINIMUM AND 2.140 INCHES MAXIMUM IN; Width Across Flats: 1.720 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-13924,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.