The Retainer,seal Unit, cataloged under National Stock Number 5330-01-690-2071, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5330-01-690-2071 |
| Primary Part Number | 566894 |
| Item Name | Retainer,seal Unit |
| FSC / FSG | 5330 / 53 — Packing and Gasket Materials |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 566894 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
| Reference | Meaning |
|---|---|
| 566894 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5330-01-690-2071 is a Retainer,seal Unit, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
NSN 5330-01-690-2071 has 1 manufacturer part number on file: 566894 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 566894: Criticality Code Justification: AGAV; Special Features: OIL SEAL RETAINER; End Item Identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.