The Seal,air,aircraft Gas Turbine En, cataloged under National Stock Number 2840-00-075-8463, 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 Union Machine Co of Lynn, Inc. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-075-8463 |
| Primary Part Number | 488563 |
| Item Name | Seal,air,aircraft Gas Turbine En |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Union Machine Co of Lynn, Inc |
| Status | ACTIVE |
| Stage Number | 14 |
| Design Type | AXIAL COMPRESSOR |
| Criticality Code Justification | FEAT |
| Material Document and Classification | AMS5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Diameter | 23.510 INCHES MINIMUM AND 23.530 INCHES MAXIMUM IN |
| Engine Section Location | COMPRESSOR |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 488563 PRIMARY | Union Machine Co of Lynn, Inc (USA) |
| 488563 | Paramount Machine Company, Inc. Dba Paramount Machine Co Inc (USA) |
| 488563 | Rtx Corporation Div Pratt & Whitney (USA) |
| 488563 | Demusz Mfg. Co., Inc. (USA) |
| 488563 | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 488563 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 488563 | 5/9 Secondary reference Ambel Precision Manufacturing Corporation |
NSN 2840-00-075-8463 is a Seal,air,aircraft Gas Turbine En, manufactured by Union Machine Co of Lynn, Inc, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-075-8463 has 5 manufacturer part numbers on file: 488563 (Union Machine Co of Lynn, Inc), 488563 (Paramount Machine Company, Inc. Dba Paramount Machine Co Inc), 488563 (Rtx Corporation Div Pratt & Whitney), 488563 (Demusz Mfg. Co., Inc.), 488563 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 488563: Stage Number: 14; Design Type: AXIAL COMPRESSOR; Criticality Code Justification: FEAT; Material Document and Classification: AMS5613 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 7 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.
NSN 2840-00-075-8463 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.