The Washer,flat, cataloged under National Stock Number 5310-00-494-8012, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Meggitt Aircraft Braking Systems Corporation. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-00-494-8012 |
| Primary Part Number | GWA18-6 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Meggitt Aircraft Braking Systems Corporation |
| Status | ACTIVE |
| Overall Diameter | 0.699 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Cross-Sectional Shape Style | RECTANGULAR |
| Surface Treatment | CADMIUM OVERALL |
| Peripheral Shape Style | ROUND |
| Material | STEEL OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.384 INCHES NOMINAL IN |
| Thickness | 0.151 INCHES NOMINAL 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 |
|---|---|
| GWA18-6 | Bright Lights Usa, Inc Dba Blusa Defense Manufacturing (USA) |
| GWA18-6 | Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company (USA) |
| GWA18-6 PRIMARY | Meggitt Aircraft Braking Systems Corporation (USA) |
| GWA18-6 | Norcatec Llc (USA) |
| Reference | Meaning |
|---|---|
| 10088020 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| GWA18-6 | 5/9 Secondary reference Goodyear Tire and Rubber Co the |
NSN 5310-00-494-8012 is a Washer,flat, manufactured by Meggitt Aircraft Braking Systems Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-494-8012 has 4 manufacturer part numbers on file: GWA18-6 (Bright Lights Usa, Inc Dba Blusa Defense Manufacturing), GWA18-6 (Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company), GWA18-6 (Meggitt Aircraft Braking Systems Corporation), GWA18-6 (Norcatec Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-133-3310. Verify interchangeability with system specifications before substitution.
Key specifications for GWA18-6: Overall Diameter: 0.699 INCHES NOMINAL IN; Heat Treatment: AS FABRICATED; Cross-Sectional Shape Style: RECTANGULAR; Surface Treatment: CADMIUM 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.