The Spacer,compressor Rotor,aircraft, cataloged under National Stock Number 2840-00-435-5545, 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 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2840-00-435-5545 |
| Primary Part Number | 542026 |
| Item Name | Spacer,compressor Rotor,aircraft |
| FSC / FSG | 2840 / 28 — Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Criticality Code Justification | AGAV |
| 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 |
|---|---|
| 542026 | Beacon Industries, Inc. Dba Beacon Technology Co (USA) |
| 542026 | Ambel Precision Manufacturing Corporation (USA) |
| 542026 | Electro-Methods, L.p. (USA) |
| 542026 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 542026 | 5/9 Secondary reference Machine Products Co Inc |
| 542026 | 5/9 Secondary reference Stowe Machine Co., Inc. |
NSN 2840-00-435-5545 is a Spacer,compressor Rotor,aircraft, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 2840, Gas Turbines and Jet Engines, Aircraft, Prime Moving; and Components. Status: active.
NSN 2840-00-435-5545 has 4 manufacturer part numbers on file: 542026 (Beacon Industries, Inc. Dba Beacon Technology Co), 542026 (Ambel Precision Manufacturing Corporation), 542026 (Electro-Methods, L.p.), 542026 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
2 possible matches (shared part number, not a government interchangeability claim): 5895-00-691-5586, 6515-01-242-3909. Verify interchangeability with system specifications before substitution.
Key specifications for 542026: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: SPACER ASSEMBLY-CPR; End Item Identification: TF-33 AIRCRAFT ENGINE. 1 specification is 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 2840-00-435-5545 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.