PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20401-2Parts Kit,valve

Hamilton Sundstrand Corporation Dba Collins Aerospace · NSN 1660-00-168-5561 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-168-5561 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-168-5561. Primary manufacturer part number: 20401-2.
Features
  • Parts Kit,valve — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Hamilton Sundstrand Corporation Dba Collins Aerospace
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,valve, cataloged under National Stock Number 1660-00-168-5561, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameParts Kit,valve
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersHamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030)
Technical Specifications
ParameterValue
NSN1660-00-168-5561
Primary Part Number20401-2
Item NameParts Kit,valve
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerHamilton Sundstrand Corporation Dba Collins Aerospace
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
6515-00-451-260500-2040-012-00 INTERCHANGEABLE
Stockings,anti-Embolism
Zimmer, Inc. Dba Z Hotel
4320-00-461-3142 INTERCHANGEABLE
Housing,front
5961-00-930-5326 INTERCHANGEABLE
Transistor
6685-01-111-646620401-2 INTERCHANGEABLE
Controller,temperat
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
3510-01-140-86992-4012 INTERCHANGEABLE
Repair Kit,mounting Stem
Maytag Corporation Dba Maytag Appliancessales
6515-01-210-9529204.012 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3120-01-273-1571204012 INTERCHANGEABLE
Bushing,sleeve
Dutton-Lainson Company
5935-01-487-2813204012-1 INTERCHANGEABLE
Connector Assembly,electrical
Frontier Electronic Systems Corp
4320-01-562-1708204-012 INTERCHANGEABLE
Repair Kit,pumping Assembly
Globe Trailer Manufacturing, Inc.
5640-01-706-5689204012 INTERCHANGEABLE
Insulation Sleeving,thermal
Heatshield Products, Inc
Cross-Reference Index
Part NumberManufacturer
20401-2 PRIMARY Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
6515-00-451-2605INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
00-2040-012-00
4320-00-461-3142INTERCHANGEABLE
HOUSING,FRONT
5961-00-930-5326INTERCHANGEABLE
TRANSISTOR
6685-01-111-6466INTERCHANGEABLE
CONTROLLER,TEMPERAT
20401-2
3510-01-140-8699INTERCHANGEABLE
REPAIR KIT,MOUNTING STEM
2-4012
6515-01-210-9529INTERCHANGEABLE
SCREW,BONE
204.012
3120-01-273-1571INTERCHANGEABLE
BUSHING,SLEEVE
204012
5935-01-487-2813INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
204012-1
4320-01-562-1708INTERCHANGEABLE
REPAIR KIT,PUMPING ASSEMBLY
204-012
5640-01-706-5689INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
204012

Frequently Asked Questions

What is NSN 1660-00-168-5561?

NSN 1660-00-168-5561 is a Parts Kit,valve, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 1660 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 1660-00-168-5561?

NSN 1660-00-168-5561 has 1 cross-referenced part number: 20401-2 (Hamilton Sundstrand Corporation Dba Collins Aerospace).

What NSN replaces 1660-00-168-5561?

There are 10 known substitutes for 1660-00-168-5561: 6515-00-451-2605, 4320-00-461-3142, 5961-00-930-5326 and 7 more. Verify interchangeability with system specifications before substitution.

Is NSN 1660-00-168-5561 still in active supply?

NSN 1660-00-168-5561 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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