The Accumulator,pneumatic, cataloged under National Stock Number 1650-00-342-0646, 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 Kidde-Fenwal, Llc. Government technical data includes 8 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. 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 | 1650-00-342-0646 |
| Primary Part Number | 870935 |
| Item Name | Accumulator,pneumatic |
| FSC / FSG | 1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components |
| Manufacturer | Kidde-Fenwal, Llc |
| Status | ACTIVE |
| Bleeder Opening | INCLUDED |
| Overall Diameter | 3.750 INCHES NOMINAL IN |
| Cubic Capacity | 100.000 CUBIC INCHES |
| Port Screw Thread Diameter | 0.438 INCHES NOMINAL IN |
| Port Screw Thread Series Designator | UNF |
| Shape | CYLINDRICAL |
| Port Screw Thread Quantity Per Inch | 20.000 |
| Thread Class | 3A A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 870935 PRIMARY | Kidde-Fenwal, Llc (USA) |
NSN 1650-00-342-0646 is a Accumulator,pneumatic, manufactured by Kidde-Fenwal, Llc, classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
NSN 1650-00-342-0646 has 1 manufacturer part number on file: 870935 (Kidde-Fenwal, Llc).
1 possible match (shared part number, not a government interchangeability claim): 6750-01-427-6834. Verify interchangeability with system specifications before substitution.
Key specifications for 870935: Bleeder Opening: INCLUDED; Overall Diameter: 3.750 INCHES NOMINAL IN; Cubic Capacity: 100.000 CUBIC INCHES; Port Screw Thread Diameter: 0.438 INCHES NOMINAL IN. 8 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 1650-00-342-0646 has DEMIL Code B. 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.