The Washer,seal, cataloged under National Stock Number 5310-01-569-6576, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company Dba Fastenal Co. Government technical data includes 6 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 | 5310-01-569-6576 |
| Primary Part Number | 33163 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Fastenal Company Dba Fastenal Co |
| Status | ACTIVE |
| Style Designator | CONCAVE |
| Outside Diameter | 0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM0.520 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING BODY |
| Material | RUBBER SEALING ELEMENT |
| Hole Diameter | 0.180 INCHES MINIMUM AND 0.180 INCHES MINIMUM AND 0.220 INCHES MAXIMUM0.220 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 |
|---|---|
| 33163 PRIMARY | Fastenal Company Dba Fastenal Co (USA) |
NSN 5310-01-569-6576 is a Washer,seal, manufactured by Fastenal Company Dba Fastenal Co, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-569-6576 has 1 manufacturer part number on file: 33163 (Fastenal Company Dba Fastenal Co).
Key specifications for 33163: Overall Height: 0.090 INCHES MINIMUM AND 0.090 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN; Style Designator: CONCAVE; Outside Diameter: 0.480 INCHES MINIMUM AND 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM0.520 INCHES MAXIMUM IN; Surface Treatment: PASSIVATE OVERALL. 6 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.