The Bellows,flexible, cataloged under National Stock Number 2835-00-654-6779, is classified within Federal Supply Class 2835 (Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Alamo Aircraft, Ltd.. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2835-00-654-6779 |
| Primary Part Number | 25495-1 |
| Item Name | Bellows,flexible |
| FSC / FSG | 2835 / 28 — Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components |
| Manufacturer | Alamo Aircraft, Ltd. |
| Status | ACTIVE |
| General Characteristics Item Description | LAMINATED WITH SILICON RUBBER,4.530 IN. MAX ID IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 25495-1 PRIMARY | Alamo Aircraft, Ltd. (USA) |
| Reference | Meaning |
|---|---|
| 25495-1 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 2835-00-654-6779 is a Bellows,flexible, manufactured by Alamo Aircraft, Ltd., classified under FSC 2835, Gas Turbines and Jet Engines; Non-aircraft Prime Mover, Aircraft Non-prime Mover, and Components. Status: active.
NSN 2835-00-654-6779 has 1 manufacturer part number on file: 25495-1 (Alamo Aircraft, Ltd.).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-578-3798. Verify interchangeability with system specifications before substitution.
Key specifications for 25495-1: General Characteristics Item Description: LAMINATED WITH SILICON RUBBER,4.530 IN. MAX ID IN. 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.
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.