NSN 1660-01-668-2759 · NIIN 016682759 · Part number 4953036
Rtx Corporation Div Pratt & Whitney · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 55820
Government record, cited
NSN 1660-01-668-2759 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-668-2759. Manufacturer of record part number: 4953036.
Also searched as1660-01-668-2759 ·
1660016682759 ·
NIIN 016682759 ·
01-668-2759 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 55820 · 4953036
Nearby stock numbers← 1660-01-668-2594 Duct Assembly, Air Conditioning-H
·
1660-01-668-3196 Duct Assembly, Air Conditioning-H →
Features
Filter Element,air Conditioning — FSC 1660
Criticality Code Justification: AGAV
1 manufacturer part number on file
Manufacturer of record: Rtx Corporation Div Pratt & Whitney
Identification
NSN: 1660-01-668-2759
NIIN: 016682759
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 4953036
Manufacturer: Rtx Corporation Div Pratt & Whitney
General Description
The Filter Element,air Conditioning, cataloged under National Stock Number 1660-01-668-2759, 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 Rtx Corporation Div Pratt & Whitney. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-668-2759
Primary Part Number
4953036
Item Name
Filter Element,air Conditioning
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-001-1693
DUCT ASSEMBLY,AIR CONDITIONING-H
1660-00-001-1754
BAFFLE,AIR
1660-00-001-2491
CAGE,BYPASS VALVE
1660-00-001-2493
1660-00-001-2493 · Item name not on file
1660-00-001-2496
CONTROL BOX,ELECTRICAL-ELECTRONI
1660-00-001-2497
1660-00-001-2497 · Item name not on file
1660-00-001-4130
1660-00-001-4130 · Item name not on file
1660-00-001-4479
CONTROLLER,AIR PRESSURE,AIRCRAFT
Frequently Asked Questions
What is NSN 1660-01-668-2759?
NSN 1660-01-668-2759 is a Filter Element,air Conditioning, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-668-2759?
NSN 1660-01-668-2759 has 1 manufacturer part number on file: 4953036 (Rtx Corporation Div Pratt & Whitney).
What are the specifications of 4953036?
Key specifications for 4953036: Criticality Code Justification: AGAV; Part Name Assigned by Controlling Agency: SENSOR-DELTA P, INLET FILTER; End Item Identification: CRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-01-668-2759 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.