NSN 1650-01-668-1640 · NIIN 016681640 · Part number 126173-201
Donaldson Company, Inc. · FSC 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components · FSG 16 — Aircraft Components and Accessories · CAGE 18265
Government record, cited
NSN 1650-01-668-1640 — this item is cataloged by the U.S. Government under National Stock Number 1650-01-668-1640. Manufacturer of record part number: 126173-201.
Also searched as1650-01-668-1640 ·
1650016681640 ·
NIIN 016681640 ·
01-668-1640 ·
FSC 1650 Aircraft Hydraulic, Vacuum, and De-icing System Components · CAGE 18265 · 126173-201
FSC: 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components
FSG: 16 — Aircraft Components and Accessories
Primary part number: 126173-201
Manufacturer: Donaldson Company, Inc.
General Description
The Modification Kit,aircraft Compon, cataloged under National Stock Number 1650-01-668-1640, is classified within Federal Supply Class 1650 (Aircraft Hydraulic, Vacuum, and De-icing System Components) of the Aircraft Components and Accessories group. The manufacturer of record is Donaldson Company, Inc.. 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
1650-01-668-1640
Primary Part Number
126173-201
Item Name
Modification Kit,aircraft Compon
FSC / FSG
1650 / 16 — Aircraft Hydraulic, Vacuum, and De-icing System Components
Other items in FSC 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1650-00-011-0886
1650-00-011-0886 · Item name not on file
1650-00-013-3761
SLIDE,SELECTOR
1650-00-059-7742
PARTS KIT,SEAL REPLACEMENT,MECHA
1650-00-101-7836
CLIP,RETURN PLATE
1650-00-138-2779
FILTERING DISK,FLUID
1650-00-162-3907
PARTS KIT,LINEAR ACTUATING CYLIN
1650-00-594-3500
DISK,VALVE
1650-00-658-8056
PARTS KIT,VALVE
Frequently Asked Questions
What is NSN 1650-01-668-1640?
NSN 1650-01-668-1640 is a Modification Kit,aircraft Compon, manufactured by Donaldson Company, Inc., classified under FSC 1650, Aircraft Hydraulic, Vacuum, and De-icing System Components. Status: active.
What part numbers are listed for NSN 1650-01-668-1640?
NSN 1650-01-668-1640 has 1 manufacturer part number on file: 126173-201 (Donaldson Company, Inc.).
What are the specifications of 126173-201?
Key specifications for 126173-201: Part Name Assigned by Controlling Agency: EAPPS BYPASS; End Item Identification: CH-53K SIKORSKY HEAVY LIFT HELICOPTER. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1650-01-668-1640 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.