NSN 1660-01-253-7692 · NIIN 012537692 · Part number 321-4-45700-227
Axillon Aerospace (rockmart), Llc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 56221
Government record, cited
NSN 1660-01-253-7692 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-253-7692. Manufacturer of record part number: 321-4-45700-227.
Also searched as1660-01-253-7692 ·
1660012537692 ·
NIIN 012537692 ·
01-253-7692 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 56221 · 321-4-45700-227
FSC Application Data: AIRCRAFT HEATING AND DEICEING SYSTEM
General Characteristics Item Description: LH VANE
1 manufacturer part number on file
Manufacturer of record: Axillon Aerospace (rockmart), Llc
Identification
NSN: 1660-01-253-7692
NIIN: 012537692
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 321-4-45700-227
Manufacturer: Axillon Aerospace (rockmart), Llc
General Description
The Heater Assembly,aircraft, cataloged under National Stock Number 1660-01-253-7692, 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 Axillon Aerospace (rockmart), Llc. Government technical data includes 2 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-253-7692
Primary Part Number
321-4-45700-227
Item Name
Heater Assembly,aircraft
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
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.
1660-00-006-4472
FLANGE,VALVE BODY
1660-00-009-5646
ADAPTER ASSEMBLY,BELLOWS
1660-00-019-8389
1660-00-019-8389 · Item name not on file
1660-00-019-8399
1660-00-019-8399 · Item name not on file
1660-00-031-5285
1660-00-031-5285 · Item name not on file
1660-00-302-4390
PISTON,REGULATING V
1660-00-441-0575
PISTON
1660-01-601-0729
ETHERNET SWITCH
Frequently Asked Questions
What is NSN 1660-01-253-7692?
NSN 1660-01-253-7692 is a Heater Assembly,aircraft, manufactured by Axillon Aerospace (rockmart), Llc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-253-7692?
NSN 1660-01-253-7692 has 1 manufacturer part number on file: 321-4-45700-227 (Axillon Aerospace (rockmart), Llc).
What are the specifications of 321-4-45700-227?
Key specifications for 321-4-45700-227: FSC Application Data: AIRCRAFT HEATING AND DEICEING SYSTEM; General Characteristics Item Description: LH VANE; End Item Identification: B-1B AIRCRAFT. 2 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-253-7692 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 1660-01-253-7692?
NSN 1660-01-253-7692 has DEMIL Code D. 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.