The Washer,key, cataloged under National Stock Number 5310-01-449-7965, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Emerson Automation Solutions Final Control Us Lp Div Navy Product Team. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5310-01-449-7965 |
| Primary Part Number | A12653.001.257 |
| Item Name | Washer,key |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| 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 |
|---|---|
| A12653.001.257 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| 12653001257 PRIMARY | Emerson Automation Solutions Final Control Us Lp Div Navy Product Team (USA) |
| Reference | Meaning |
|---|---|
| 20202FN24 | 5/9 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| 20202FN24 | 5/9 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A12653.001.257 | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
NSN 5310-01-449-7965 is a Washer,key, manufactured by Emerson Automation Solutions Final Control Us Lp Div Navy Product Team, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-449-7965 has 2 manufacturer part numbers on file: A12653.001.257 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team), 12653001257 (Emerson Automation Solutions Final Control Us Lp Div Navy Product Team).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-669-8721. Verify interchangeability with system specifications before substitution.
Key specifications for A12653.001.257: Part Name Assigned by Controlling Agency: WASHER,KEY. 0 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.