The Washer,seal, cataloged under National Stock Number 5310-00-004-4198, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Trelleborg Sealing Solutions (uk) Ltd. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Washer,seal |
| FSC / FSG | 5310 — Nuts and Washers (FSG 53) |
| Manufacturers | Trelleborg Sealing Solutions (uk) Ltd (CAGE U1068); Rolls-Royce Airlines (CAGE K0680); Techsil Limited (CAGE U6533) |
| Parameter | Value |
|---|---|
| NSN | 5310-00-004-4198 |
| Primary Part Number | GD2166-11 |
| Item Name | Washer,seal |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Trelleborg Sealing Solutions (uk) Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| GD2166-11 PRIMARY | Trelleborg Sealing Solutions (uk) Ltd (GBR) |
| GD2166-11 | Rolls-Royce Airlines (GBR) |
| GS2166-11 | Techsil Limited (GBR) |
| Reference | Meaning |
|---|---|
| GD2166-11 | 5/9 Secondary reference Rolls-Royce Plc Div Defense (europe) |
| 99-145-1023 | 5/9 Secondary reference U.S. Government activity |
| 99-145-1023 | 6/9 Informative reference only Nato Stock Number Potential Interchangeability Link |
NSN 5310-00-004-4198 is a Washer,seal, manufactured by Trelleborg Sealing Solutions (uk) Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-004-4198 has 3 manufacturer part numbers on file: GD2166-11 (Trelleborg Sealing Solutions (uk) Ltd), GD2166-11 (Rolls-Royce Airlines), GS2166-11 (Techsil Limited).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-330-3376. Verify interchangeability with system specifications before substitution.
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.