The Base,valve, cataloged under National Stock Number 1660-00-791-4072, 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 Honeywell International Inc. Div Aerospace - Torrance. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 1660-00-791-4072 |
| Primary Part Number | 135855 |
| Item Name | Base,valve |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| Manufacturer | Honeywell International Inc. Div Aerospace - Torrance |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 135855 | Honeywell International, Inc Div Aerospace-Tucson (USA) |
| 135855 PRIMARY | Honeywell International Inc. Div Aerospace - Torrance (USA) |
| Reference | Meaning |
|---|---|
| 10300541 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 135855 | 5/9 Secondary reference Alliedsignal Inc Dba Allied-Signal Aerospace Co |
NSN 1660-00-791-4072 is a Base,valve, manufactured by Honeywell International Inc. Div Aerospace - Torrance, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
NSN 1660-00-791-4072 has 2 manufacturer part numbers on file: 135855 (Honeywell International, Inc Div Aerospace-Tucson), 135855 (Honeywell International Inc. Div Aerospace - Torrance).
Key specifications for 135855: Part Name Assigned by Controlling Agency: VALVE; End Item Identification: F-4 PHANTOM II. 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 1660-00-791-4072 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.