The Plug,regulator,cabi, cataloged under National Stock Number 1660-00-509-4396, 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 Boeing Distribution Services X, Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | Plug,regulator,cabi |
| FSC / FSG | 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16) |
| Manufacturers | Boeing Distribution Services X, Inc. (CAGE 2N935) |
| Parameter | Value |
|---|---|
| NSN | 1660-00-509-4396 |
| Primary Part Number | 135205 |
| Item Name | Plug,regulator,cabi |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Boeing Distribution Services X, Inc. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 135205 PRIMARY | Boeing Distribution Services X, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 135205 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
| 135205 | 5/9 Secondary reference Honeywell International Inc. Div Aerospace - Torrance |
| 10175381 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 135205 | 3/9 Design control — primary reference Honeywell International, Inc Div Aerospace-Tucson |
NSN 1660-00-509-4396 is a Plug,regulator,cabi, manufactured by Boeing Distribution Services X, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-509-4396 has 1 manufacturer part number on file: 135205 (Boeing Distribution Services X, Inc.).
2 possible matches (shared part number, not a government interchangeability claim): 5950-01-012-4835, 3120-01-418-8747. 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.
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.