The Regulator,oxygen,demand, cataloged under National Stock Number 1660-00-243-0393, 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 Derco Aerospace, Inc. Dba Derco Repair Services. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 1660-00-243-0393 |
| Primary Part Number | 29270-10AB1 |
| Item Name | Regulator,oxygen,demand |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Derco Aerospace, Inc. Dba Derco Repair Services |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 29270-10AB1 | Derco Aerospace, Inc. Dba Derco Repair Services (USA) |
| Reference | Meaning |
|---|---|
| 29270-10AA1 | 5/9 Secondary reference U.S. Government activity |
| 1660PL0712259 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 29270-10A-B1 | 3/2 Design control — primary reference U.S. Government activity |
| 8148650 | A/1 Packaging identification reference U.S. Government activity |
| 1617357-1 | 5/9 Secondary reference U.S. Government activity |
| MIL-R-83178 | 5/9 Secondary reference U.S. Government activity |
| M83178-1 | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-83178 | 4/1 Identification reference U.S. Government activity |
NSN 1660-00-243-0393 is a Regulator,oxygen,demand, manufactured by Derco Aerospace, Inc. Dba Derco Repair Services, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-243-0393 has 1 manufacturer part number on file: 29270-10AB1 (Derco Aerospace, Inc. Dba Derco Repair Services).
4 possible matches (shared part number, not a government interchangeability claim): 1660-01-005-6318, 1660-01-010-4949, 1660-01-391-4738. Verify interchangeability with system specifications before substitution.
Key specifications for 29270-10AB1: Special Features: IN ACCORDANCE W/MIL-R-83178. 0 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 1660-00-243-0393 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.