NSN 1660-01-321-6636 · NIIN 013216636 · Part number DYLZ621-1
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 05624
Government record, cited
NSN 1660-01-321-6636 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-321-6636. Manufacturer of record part number: DYLZ621-1.
Also searched as1660-01-321-6636 ·
1660013216636 ·
NIIN 013216636 ·
01-321-6636 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 05624 · DYLZ621-1
Manufacturer of record: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Identification
NSN: 1660-01-321-6636
NIIN: 013216636
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: DYLZ621-1
Manufacturer: Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
General Description
The Disk,valve, cataloged under National Stock Number 1660-01-321-6636, 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 Ge Aviation Systems Llc Dba Ge Aviation Systems Llc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Catalog Facts
Item Name
Disk,valve
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (CAGE 05624)
Technical Specifications
Parameter
Value
NSN
1660-01-321-6636
Primary Part Number
DYLZ621-1
Item Name
Disk,valve
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc
Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
Reference documents
Reference
Meaning
DYLZ621-1
C/1Advisory reference — outside the item-of-supply concept
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
No interchangeability data on file.
Other items in FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1660-00-001-1693
DUCT ASSEMBLY,AIR CONDITIONING-H
1660-00-001-1754
BAFFLE,AIR
1660-00-001-2491
CAGE,BYPASS VALVE
1660-00-001-2493
1660-00-001-2493 · Item name not on file
1660-00-001-2496
CONTROL BOX,ELECTRICAL-ELECTRONI
1660-00-001-2497
1660-00-001-2497 · Item name not on file
1660-00-001-4130
1660-00-001-4130 · Item name not on file
1660-00-001-4479
CONTROLLER,AIR PRESSURE,AIRCRAFT
Frequently Asked Questions
What is NSN 1660-01-321-6636?
NSN 1660-01-321-6636 is a Disk,valve, manufactured by Ge Aviation Systems Llc Dba Ge Aviation Systems Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-321-6636?
NSN 1660-01-321-6636 has 1 manufacturer part number on file: DYLZ621-1 (Ge Aviation Systems Llc Dba Ge Aviation Systems Llc).
Is NSN 1660-01-321-6636 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.