The Retainer,seal, cataloged under National Stock Number 2840-01-171-0857, is classified within Federal Supply Class 2840 (Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 3 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-01-171-0857 |
| Primary Part Number | 23002647 |
| Item Name | Retainer,seal |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Overall Diameter | 18.2875 INCHES NOMINAL IN |
| Criticality Code Justification | MATT AND ADAV AND AGAV |
| Material | STEEL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 23002647 PRIMARY | Rolls-Royce Corporation (USA) |
| Reference | Meaning |
|---|---|
| 23002647 | 5/9 Secondary reference Rds Manufacturing, Inc. |
| 23002647 | 5/9 Secondary reference Pratt & Whitney Psd, Inc. |
| 23002647 | 5/9 Secondary reference T K Intl Inc Propulson Systems Group Dba Nordam Group the |
| 23002647 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 23002647 | 5/9 Secondary reference Hardcote Technologies Inc |
NSN 2840-01-171-0857 is a Retainer,seal, manufactured by Rolls-Royce Corporation, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-01-171-0857 has 1 manufacturer part number on file: 23002647 (Rolls-Royce Corporation).
Key specifications for 23002647: Overall Diameter: 18.2875 INCHES NOMINAL IN; Criticality Code Justification: MATT AND ADAV AND AGAV; End Item Identification: ACFT ENG TF-41; Material: STEEL. 3 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.