The Regulator,oxygen,diluter Demand, cataloged under National Stock Number 1660-00-079-4644, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. The manufacturer of record is Mission Systems Orchard Park Inc. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-00-079-4644 |
| Primary Part Number | 14950-26A |
| Item Name | Regulator,oxygen,diluter Demand |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Mission Systems Orchard Park Inc |
| Status | ACTIVE |
| Flow Indicator | INCLUDED |
| Mounting Method | SCREW |
| Voltage in Volts | 28.000 |
| Lighted Panel | INCLUDED |
| Pressure Gage | INCLUDED |
| Inlet Connection Size | 1/8 IN ANPT IN |
| On-Off Switch | INCLUDED |
| Installation Design | NONPORTABLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 1660-00-079-4644 is a Regulator,oxygen,diluter Demand, manufactured by Mission Systems Orchard Park Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-079-4644 has 2 manufacturer part numbers on file: 14950-26A (Mission Systems Orchard Park Inc), 14950-26C (Cae Gmbh).
1 possible match (shared part number, not a government interchangeability claim): 1660-00-900-3976. Verify interchangeability with system specifications before substitution.
Key specifications for 14950-26A: Overall Height: 3.000 INCHES NOMINAL IN; Flow Indicator: INCLUDED; Mounting Method: SCREW; Voltage in Volts: 28.000. 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 1660-00-079-4644 has DEMIL Code D. 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.