The Washer,spring Tension, cataloged under National Stock Number 5310-01-185-8697, 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 6 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-185-8697 |
| Primary Part Number | AM1608210 |
| Item Name | Washer,spring Tension |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Matthew Warren, Inc. Div Maryland Precision Spring |
| Status | ACTIVE |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM |
| Style Designator | SPRING TENSION |
| Outside Diameter | 6.284 INCHES MINIMUM AND 6.300 INCHES MAXIMUM IN |
| Material Thickness | 0.3670 INCHES MINIMUM AND 0.3730 INCHES MAXIMUM IN |
| Material | STEEL COMP 1075 OR STEEL COMP 6150 OR STEEL COMP 631 OVERALL |
| Hole Diameter | 3.230 INCHES MINIMUM AND 3.244 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 |
|---|---|
| AM1608210 PRIMARY | Matthew Warren, Inc. Div Maryland Precision Spring (USA) |
| 2E2-24D PIECE 13 PRIMARY | Lake Shore Systems, Inc. (USA) |
| Reference | Meaning |
|---|---|
| AM1608210 | 5/9 Secondary reference Rolex Company Dba Rolex Company Div Rolex Company |
NSN 5310-01-185-8697 is a Washer,spring Tension, manufactured by Matthew Warren, Inc. Div Maryland Precision Spring, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-185-8697 has 2 manufacturer part numbers on file: AM1608210 (Matthew Warren, Inc. Div Maryland Precision Spring), 2E2-24D PIECE 13 (Lake Shore Systems, Inc.).
Key specifications for AM1608210: Overall Height: 0.5235 INCHES MINIMUM AND 0.5395 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 48.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION; Outside Diameter: 6.284 INCHES MINIMUM AND 6.300 INCHES MAXIMUM 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.