NSN 5999-01-666-9856 · NIIN 016669856 · Part number 1015137-1
Hamilton Sundstrand Corporation Dba Collins Aerospace · FSC 5999 — Miscellaneous Electrical and Electronic Components · FSG 59 — Electrical and Electronic Equipment Components · CAGE 73030
Government record, cited
NSN 5999-01-666-9856 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-666-9856. Manufacturer of record part number: 1015137-1.
Also searched as5999-01-666-9856 ·
5999016669856 ·
NIIN 016669856 ·
01-666-9856 ·
FSC 5999 Miscellaneous Electrical and Electronic Components · CAGE 73030 · 1015137-1
Manufacturer of record: Hamilton Sundstrand Corporation Dba Collins Aerospace
Identification
NSN: 5999-01-666-9856
NIIN: 016669856
FSC: 5999 — Miscellaneous Electrical and Electronic Components
FSG: 59 — Electrical and Electronic Equipment Components
Primary part number: 1015137-1
Manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
General Description
The Duct Assembly,electronic Equipme, cataloged under National Stock Number 5999-01-666-9856, is classified within Federal Supply Class 5999 (Miscellaneous Electrical and Electronic Components) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. 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. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5999-01-666-9856
Primary Part Number
1015137-1
Item Name
Duct Assembly,electronic Equipme
FSC / FSG
5999 / 59 — Miscellaneous Electrical and Electronic Components
Manufacturer
Hamilton Sundstrand Corporation Dba Collins Aerospace
Status
ACTIVE
Criticality Code Justification
FEAT
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
No interchangeability data on file.
Other items in FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345
5999-00-001-1345 · Item name not on file
5999-00-001-1346
5999-00-001-1346 · Item name not on file
5999-00-001-1348
5999-00-001-1348 · Item name not on file
5999-00-001-1349
5999-00-001-1349 · Item name not on file
5999-00-001-1355
5999-00-001-1355 · Item name not on file
5999-00-001-1623
5999-00-001-1623 · Item name not on file
5999-00-001-2537
5999-00-001-2537 · Item name not on file
5999-00-001-2539
5999-00-001-2539 · Item name not on file
Frequently Asked Questions
What is NSN 5999-01-666-9856?
NSN 5999-01-666-9856 is a Duct Assembly,electronic Equipme, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 5999, Miscellaneous Electrical and Electronic Components. Status: active.
What part numbers are listed for NSN 5999-01-666-9856?
NSN 5999-01-666-9856 has 1 manufacturer part number on file: 1015137-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace).
What are the specifications of 1015137-1?
Key specifications for 1015137-1: Criticality Code Justification: FEAT; Special Features: CRITICAL APPLICATION ITEM (CAI); PART OF ENVIRONMENTAL CONTROL SYSTEMS, AIR CONDITIONING; Part Name Assigned by Controlling Agency: DUCT ASSEMBLY; ASSY, DUCT; End Item Identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 1 specification is documented in the U.S. Government catalog.
Is NSN 5999-01-666-9856 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). 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.