NSN 1660-01-502-5271 · NIIN 015025271 · Part number 70500-02057-403
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 78286
Government record, cited
NSN 1660-01-502-5271 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-502-5271. Manufacturer of record part number: 70500-02057-403.
Also searched as1660-01-502-5271 ·
1660015025271 ·
NIIN 015025271 ·
01-502-5271 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 78286 · 70500-02057-403 · 70500-02057
Nearby stock numbers← 1660-01-502-5259 Duct Assembly, Air Conditioning-H
·
1660-01-502-5290 Duct Assembly, Air Conditioning-H →
Features
Duct Assembly,air Conditioning-H — FSC 1660
1 manufacturer part number on file
Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Identification
NSN: 1660-01-502-5271
NIIN: 015025271
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-502-5271, 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 Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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.
Technical Specifications
Parameter
Value
NSN
1660-01-502-5271
Primary Part Number
70500-02057-403
Item Name
Duct Assembly,air Conditioning-H
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
NSN 1660-01-502-5271 is a Duct Assembly,air Conditioning-H, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-502-5271?
NSN 1660-01-502-5271 has 1 manufacturer part number on file: 70500-02057-403 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
What NSN replaces 1660-01-502-5271?
4 possible matches (shared part number, not a government interchangeability claim): 1660-01-502-5290, 1660-01-502-5595, 1680-01-502-5620. Verify interchangeability with system specifications before substitution.
What are the specifications of 70500-02057-403?
Key specifications for 70500-02057-403: Special Features: NHA DUCT INSTL CABIN STA 265.50-247.00; WEIGHT 1.79000; Part Name Assigned by Controlling Agency: PLENUM ASSY. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-502-5271 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.