The Washer,spring Tension, cataloged under National Stock Number 5310-01-044-9561, 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 6 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 | 5310-01-044-9561 |
| Primary Part Number | 12007657 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Army, United States Department of the Dba Rock Island Arsenal Jmtc |
| Status | ACTIVE |
| Hardness Rating | 44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM |
| Style Designator | SPRING TENSION |
| Outside Diameter | 2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN |
| Material Thickness | 0.181 INCHES NOMINAL0.181 INCHES NOMINAL IN |
| Material | STEEL COMP 6150 OVERALL |
| Hole Diameter | 1.440 INCHES NOMINAL1.440 INCHES NOMINAL IN |
| 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 |
|---|---|
| 12007657 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-01-044-9561 is a Washer,spring Tension, manufactured by Army, United States Department of the Dba Rock Island Arsenal Jmtc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-044-9561 has 1 manufacturer part number on file: 12007657 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 12007657: Overall Height: 0.202 INCHES NOMINAL0.202 INCHES NOMINAL IN; Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM48.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION; Outside Diameter: 2.370 INCHES NOMINAL2.370 INCHES NOMINAL IN. 6 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.