The Washer,flat, cataloged under National Stock Number 5310-00-531-9514, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Embraer Aviation International. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 48 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Cancelled.
| Item Name | Washer,flat |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Embraer Aviation International (CAGE FB459); Mbda Uk Ltd (CAGE K0967) |
| Parameter | Value |
|---|---|
| NSN | 5310-00-531-9514 |
| Primary Part Number | 2302923 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Embraer Aviation International |
| Status | CANCELLED |
| Acquisition Status | CANCELLED |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2302923 | Embraer Aviation International (FRA) |
| B68156 | Mbda Uk Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 5310PL1389543 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| W-2020 | 5/2 Secondary reference U.S. Government activity |
| 5310005319514 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| AN960C6 | 6/9 Informative reference only Royal Malaysian Navy |
| 122-5277668 ITEM 58 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
| 911287 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| 310-6360-00 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| 310-6360-00 | 5/9 Secondary reference Wrought Washer Mfg., Inc. |
| 218066 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| Z4-6 | 5/9 Secondary reference W. M. Berg, Inc. |
| Y7-6 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 10450 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 6027759 | 5/9 Secondary reference International Business Machines Corp Parts Order Center Dept E - 54 |
| 310-6360-000 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| 90400-7 | 5/9 Secondary reference Comtec Information Systems Inc Digitronics Div |
| 902991-04 | 5/9 Secondary reference U.S. Government activity |
| LS9660C6 | E/8 Replaced / superseded reference U.S. Government activity |
| 96305 | E/8 Replaced / superseded reference Federal Screw Products, Inc. |
| 50320 | 5/9 Secondary reference U.S. Government activity |
| 911287 | 5/9 Secondary reference Abb Inc. Dba a B B Analytical Products |
NSN 5310-00-531-9514 is a Washer,flat, manufactured by Embraer Aviation International, classified under FSC 5310, Nuts and Washers. Status: cancelled.
NSN 5310-00-531-9514 has 2 manufacturer part numbers on file: 2302923 (Embraer Aviation International), B68156 (Mbda Uk Ltd).
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
NSN 5310-00-531-9514 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.
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.