The Bladder,accumulator,hydraulic, cataloged under National Stock Number 1650-00-463-5049, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is The Entwistle Company Llc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Bladder,accumulator,hydraulic |
| FSC / FSG | 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components (FSG 16) |
| Manufacturers | The Entwistle Company Llc (CAGE 20722) |
| Parameter | Value |
|---|---|
| NSN | 1650-00-463-5049 |
| Primary Part Number | AI-2.5-3KT |
| Item Name | Bladder,accumulator,hydraulic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | The Entwistle Company Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| AI-2.5-3KT PRIMARY | The Entwistle Company Llc (USA) |
| Reference | Meaning |
|---|---|
| A12.53KT | 5/9 Secondary reference Entwistle Co the Kenett Hydraulic Systems Div |
| A12.53KT | 5/9 Secondary reference The Entwistle Company Llc |
| A104-252 | 5/9 Secondary reference Entwistle Co the Kenett Hydraulic Systems Div |
NSN 1650-00-463-5049 is a Bladder,accumulator,hydraulic, manufactured by The Entwistle Company Llc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-463-5049 has 1 manufacturer part number on file: AI-2.5-3KT (The Entwistle Company Llc).
2 possible matches (shared part number, not a government interchangeability claim): 1025-00-633-4930, 2530-01-518-7864. Verify interchangeability with system specifications before substitution.
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 1650-00-463-5049 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.