The Regulator,air Pressure,aircraft, cataloged under National Stock Number 1660-01-043-0845, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 1660-01-043-0845 |
| Item Name | Regulator,air Pressure,aircraft |
| FSC / FSG | 1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment |
| 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 | X |
| Reference | Meaning |
|---|---|
| 18-54923-1 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 56710-1 | 3/2 Design control — primary reference U.S. Government activity |
| 18-54923-1 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 1660-01-043-0845 is a Regulator,air Pressure,aircraft, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5950-01-079-9043. Verify interchangeability with system specifications before substitution.
Key specifications for 1660-01-043-0845: Special Features: 2.600 IN. LG; 2.250 IN. DIA, CONSIST OF; SCREEN 35353; BODY 35352; HOUSING 35351; DIAPHRAGM 15737-1; PISTON 35349; POPET 35348; SPRING 35346; COVER35345; VALVE 34462; PRESS INLET PORT OPERATING 220 PSIG, PROOF 330 PSIG; BURST: 550 PSIG MIN; OUTLET PORT OPERATING 15 PSIG, PROOF 30;PSIG BURST 60 PSIGMIN IN; End Item Identification: ACFT F5F. 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 1660-01-043-0845 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.