The Washer,spring Tension, cataloged under National Stock Number 5310-01-047-3331, 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 7 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 | 5310-01-047-3331 |
| Primary Part Number | 12007611 |
| 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 |
| Material Document and Classification | ASTMA322 NATIONAL SPEC 1ST MATERIAL RESPONSE OR ASTMA331 NATIONAL SPEC 2ND MATERIAL RESPONSE OR ASTMA506 NATIONAL SPEC 3RD MATERIAL RESPONSE OR ASTMA507 NATIONAL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Outside Diameter | 2.675 INCHES MINIMUM AND 2.675 INCHES MINIMUM AND 2.680 INCHES MAXIMUM2.680 INCHES MAXIMUM IN |
| Material Thickness | 0.230 INCHES MINIMUM AND 0.230 INCHES MINIMUM AND 0.232 INCHES MAXIMUM0.232 INCHES MAXIMUM IN |
| Material | STEEL COMP 6150 OVERALL |
| Hole Diameter | 1.750 INCHES MINIMUM AND 1.750 INCHES MINIMUM AND 1.755 INCHES MAXIMUM1.755 INCHES MAXIMUM 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 |
|---|---|
| 12007611 PRIMARY | Army, United States Department of the Dba Rock Island Arsenal Jmtc (USA) |
NSN 5310-01-047-3331 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 5310-01-047-3331 has 1 manufacturer part number on file: 12007611 (Army, United States Department of the Dba Rock Island Arsenal Jmtc).
Key specifications for 12007611: Overall Height: 0.252 INCHES NOMINAL0.252 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; Material Document and Classification: ASTMA322 NATIONAL SPEC 1ST MATERIAL RESPONSE OR ASTMA331 NATIONAL SPEC 2ND MATERIAL RESPONSE OR ASTMA506 NATIONAL SPEC 3RD MATERIAL RESPONSE OR ASTMA507 NATIONAL SPEC 4TH MATERIAL RESPONSE OVERALL. 7 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.