NSN 1660-01-251-2159 · NIIN 012512159 · Part number A-021-2-1
Bill Mcclung Inc · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 33871
Government record, cited
NSN 1660-01-251-2159 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-251-2159. Manufacturer of record part number: A-021-2-1.
Also searched as1660-01-251-2159 ·
1660012512159 ·
NIIN 012512159 ·
01-251-2159 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 33871 · A-021-2-1 · A-022-2-1
Nearby stock numbers← 1660-01-251-1094 Duct Assembly, Air Conditioning-H
·
1660-01-251-2549 Control Box, Electrical-Electroni →
Features
Static Vent — FSC 1660
2 manufacturer part numbers on file
Manufacturer of record: Bill Mcclung Inc
Identification
NSN: 1660-01-251-2159
NIIN: 012512159
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: A-021-2-1
Manufacturer: Bill Mcclung Inc
General Description
The Static Vent, cataloged under National Stock Number 1660-01-251-2159, 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 Bill Mcclung Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Static Vent
FSC / FSG
1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment (FSG 16)
Manufacturers
Bill Mcclung Inc (CAGE 33871)
Technical Specifications
Parameter
Value
NSN
1660-01-251-2159
Primary Part Number
A-021-2-1
Item Name
Static Vent
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 1660-01-251-2159?
NSN 1660-01-251-2159 is a Static Vent, manufactured by Bill Mcclung Inc, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-01-251-2159?
NSN 1660-01-251-2159 has 2 manufacturer part numbers on file: A-021-2-1 (Bill Mcclung Inc), A-022-2-1 (Bill Mcclung Inc).
Is NSN 1660-01-251-2159 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 1660-01-251-2159?
NSN 1660-01-251-2159 has DEMIL Code B. 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.