The Washer,flat, cataloged under National Stock Number 5310-01-054-5063, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bae Systems Integrated Defense Solutions Inc.. Government technical data includes 11 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 | 5310-01-054-5063 |
| Primary Part Number | 205-C03020 |
| Item Name | Washer,flat |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bae Systems Integrated Defense Solutions Inc. |
| Status | ACTIVE |
| Center Hole Width | 0.410 INCHES NOMINAL IN |
| Width Across Flats | 0.913 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN |
| Outside Left Corner Chamfer Angle | 30.0 DEGREES NOMINAL |
| Surface Treatment Document and Classification | QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | ASTM A582,TY 303,COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Cross-Sectional Shape Style | BLANK RECTANGULAR |
| Surface Treatment | PASSIVATE OVERALL |
| Peripheral Shape Style | HEXAGON |
| Material | STEEL CORROSION RESISTING OVERALL |
| Center Hole Shape Style | SQUARE |
| Thickness | 0.100 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 |
|---|---|
| 205-C03020 PRIMARY | Bae Systems Integrated Defense Solutions Inc. (USA) |
NSN 5310-01-054-5063 is a Washer,flat, manufactured by Bae Systems Integrated Defense Solutions Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-054-5063 has 1 manufacturer part number on file: 205-C03020 (Bae Systems Integrated Defense Solutions Inc.).
Key specifications for 205-C03020: Center Hole Width: 0.410 INCHES NOMINAL IN; Width Across Flats: 0.913 INCHES MINIMUM AND 0.945 INCHES MAXIMUM IN; Outside Left Corner Chamfer Angle: 30.0 DEGREES NOMINAL; Surface Treatment Document and Classification: QQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 11 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.