The Washer,flat, cataloged under National Stock Number 5310-01-692-6011, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Cincinnati Gearing Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Cincinnati Gearing Systems Inc (CAGE 3BNF6) |
| Parameter | Value |
|---|---|
| NSN | 5310-01-692-6011 |
| Primary Part Number | 4000-6229 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Cincinnati Gearing Systems Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 4000-6229 PRIMARY | Cincinnati Gearing Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 311-8592275 REV F | D/9 Drawing number reference only Naval Sea Systems Command |
| X67936 | 5/9 Secondary reference Accurate Screw Machine Corp Div Accurate Screw Machine Corporation |
| 311-8592275 REV F FIND NO.5 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5310-01-692-6011 is a Washer,flat, manufactured by Cincinnati Gearing Systems Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-692-6011 has 1 manufacturer part number on file: 4000-6229 (Cincinnati Gearing Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 5305-01-692-6015. Verify interchangeability with system specifications before substitution.
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.