The Washer,spring Tension, cataloged under National Stock Number 5310-01-020-9671, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Matthew Warren, Inc. Div Maryland Precision Spring. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-020-9671 |
| Primary Part Number | A1-201065 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Matthew Warren, Inc. Div Maryland Precision Spring |
| Status | ACTIVE |
| Style Designator | SPRING TENSION |
| Material Thickness | 0.063 INCHES MINIMUM AND 0.063 INCHES MINIMUM AND 0.066 INCHES MAXIMUM0.066 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Hole Diameter | 1.000 INCHES MINIMUM AND 1.000 INCHES MINIMUM AND 1.008 INCHES MAXIMUM1.008 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 |
|---|---|
| A1-201065 PRIMARY | Matthew Warren, Inc. Div Maryland Precision Spring (USA) |
| Reference | Meaning |
|---|---|
| Y-1131-6-1 | 7/2 Vendor item drawing reference Breeze-Eastern Llc |
| A1-201065 | 5/9 Secondary reference Rolex Company Dba Rolex Company Div Rolex Company |
NSN 5310-01-020-9671 is a Washer,spring Tension, manufactured by Matthew Warren, Inc. Div Maryland Precision Spring, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-020-9671 has 1 manufacturer part number on file: A1-201065 (Matthew Warren, Inc. Div Maryland Precision Spring).
Key specifications for A1-201065: Overall Height: 0.130 INCHES NOMINAL0.130 INCHES NOMINAL IN; Style Designator: SPRING TENSION; Material Thickness: 0.063 INCHES MINIMUM AND 0.063 INCHES MINIMUM AND 0.066 INCHES MAXIMUM0.066 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL. 4 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.