The Washer,flat, cataloged under National Stock Number 5310-00-121-3563, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Goodrich Limited Div Goodrich Ltd. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-121-3563 |
| Primary Part Number | Y77113288 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Goodrich Limited Div Goodrich Ltd |
| Status | ACTIVE |
| Overall Diameter | 0.855 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Heat Treatment | AS FABRICATED |
| Material Document and Classification | S521,FSCM K0131 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | RECTANGULAR |
| Peripheral Shape Style | ROUND |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | ROUND |
| Hole Diameter | 0.375 INCHES NOMINAL IN |
| Thickness | 0.030 INCHES MINIMUM AND 0.034 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 |
|---|---|
| Y77113288 PRIMARY | Goodrich Limited Div Goodrich Ltd (GBR) |
NSN 5310-00-121-3563 is a Washer,flat, manufactured by Goodrich Limited Div Goodrich Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-121-3563 has 1 manufacturer part number on file: Y77113288 (Goodrich Limited Div Goodrich Ltd).
Key specifications for Y77113288: Overall Diameter: 0.855 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN; Heat Treatment: AS FABRICATED; Material Document and Classification: S521,FSCM K0131 MFR REF SINGLE MATERIAL RESPONSE OVERALL; Cross-Sectional Shape Style: RECTANGULAR. 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.