The Washer,flat, cataloged under National Stock Number 5310-00-161-0669, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Olympus America Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-161-0669 |
| Primary Part Number | 65A1073 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Olympus America Inc |
| Status | ACTIVE |
| Overall Diameter | 0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN |
| Hardness Rating | 50.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MAXIMUM |
| Cross-Sectional Shape Style | RECTANGULAR |
| Color | BLACK OVERALL |
| Peripheral Shape Style | ROUND |
| Material | RUBBER SYNTHETIC OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.550 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Thickness | 0.110 INCHES MINIMUM AND 0.130 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 |
|---|---|
| 65A1073 PRIMARY | Olympus America Inc (USA) |
| Reference | Meaning |
|---|---|
| 65A1073 | 3/9 Design control — primary reference Olympus Scientific Solutions Technologies Inc. |
NSN 5310-00-161-0669 is a Washer,flat, manufactured by Olympus America Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-161-0669 has 1 manufacturer part number on file: 65A1073 (Olympus America Inc).
Key specifications for 65A1073: Overall Diameter: 0.970 INCHES MINIMUM AND 1.030 INCHES MAXIMUM IN; Hardness Rating: 50.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MAXIMUM; Cross-Sectional Shape Style: RECTANGULAR; Color: BLACK OVERALL. 9 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.