PartsTable TECHNICAL DATA SHEET
NSN 1660-01-502-0860Government record, cited

Duct Assembly, Air Conditioning-H1660-01-502-0860

NSN 1660-01-502-0860 · NIIN 015020860 · Part number 70500-02057-408
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 1660-01-502-0860 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-502-0860. Manufacturer of record part number: 70500-02057-408.
Also searched as  1660-01-502-0860 · 1660015020860 · NIIN 015020860 · 01-502-0860 · FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 78286 · 70500-02057-408 · 70500-02057
Nearby stock numbers  ·
Features
  • Duct Assembly,air Conditioning-H — FSC 1660
  • Aircraft Station Number: STA 265.50-247.00
  • Aircraft Location: CABIN
  • Material: ALUMINUM ALLOY 2024
  • Aircraft Mission Design Series: CH-60
  • 1 manufacturer part number on file
  • Manufacturer of record: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Identification
  • NSN: 1660-01-502-0860
  • NIIN: 015020860
  • FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
  • FSG: 16 — Aircraft Components and Accessories
  • Primary part number: 70500-02057-408
  • Manufacturer: Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
General Description

The Duct Assembly,air Conditioning-H, cataloged under National Stock Number 1660-01-502-0860, 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. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-502-0860
Primary Part Number70500-02057-408
Item NameDuct Assembly,air Conditioning-H
FSC / FSG1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
ManufacturerSikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
StatusACTIVE
Aircraft Station NumberSTA 265.50-247.00
Aircraft LocationCABIN
MaterialALUMINUM ALLOY 2024
Aircraft Mission Design SeriesCH-60
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL B — Remove Demilitarization Key Points
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 9
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1660-01-502-086170500-02057-409 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-086370500-02057-412 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-086770500-02057-413 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-086870500-02057-411 POSSIBLE MATCH
CLAMP ASSEMBLY,DUCT
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-527170500-02057-403 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-529070500-02057-406 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1660-01-502-559570500-02057-402 POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
1680-01-502-562070500-02057-410 POSSIBLE MATCH
CLAMP ASSY
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
5340-01-502-564870500-02057-174 POSSIBLE MATCH
CLAMP,LOOP
Possible match (shared part number)Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Cross-Reference Index
Part NumberManufacturer
70500-02057-408 PRIMARY Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA)
Reference documents
ReferenceMeaning
70500-02057 D/9 Drawing number reference only
Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp
Related Parts
1660-01-502-0861POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-409
1660-01-502-0863POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-412
1660-01-502-0867POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-413
1660-01-502-0868POSSIBLE MATCH
CLAMP ASSEMBLY,DUCT
70500-02057-411
1660-01-502-5271POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-403
1660-01-502-5290POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-406
1660-01-502-5595POSSIBLE MATCH
DUCT ASSEMBLY,AIR CONDITIONING-H
70500-02057-402
1680-01-502-5620POSSIBLE MATCH
CLAMP ASSY
70500-02057-410
5340-01-502-5648POSSIBLE MATCH
CLAMP,LOOP
70500-02057-174

Frequently Asked Questions

What is NSN 1660-01-502-0860?

NSN 1660-01-502-0860 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 1660-01-502-0860?

NSN 1660-01-502-0860 has 1 manufacturer part number on file: 70500-02057-408 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).

What NSN replaces 1660-01-502-0860?

9 possible matches (shared part number, not a government interchangeability claim): 1660-01-502-0861, 1660-01-502-0863, 1660-01-502-0867. Verify interchangeability with system specifications before substitution.

What are the specifications of 70500-02057-408?

Key specifications for 70500-02057-408: Aircraft Station Number: STA 265.50-247.00; Special Features: NHA 70500-02057-015 CABIN DUCT; Aircraft Location: CABIN; Part Name Assigned by Controlling Agency: DUCT ASSY. 4 specifications are documented in the U.S. Government catalog.

Is NSN 1660-01-502-0860 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.

What is the DEMIL code for NSN 1660-01-502-0860?

NSN 1660-01-502-0860 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.

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.
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