FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories
Government record, cited
Also searched as1660-01-032-6778 ·
1660010326778 ·
NIIN 010326778 ·
01-032-6778 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · 200300-3 · 200300-5
Nearby stock numbers← 1660-01-032-6777 Disconnect Assembly, Left Hand
·
1660-01-032-7524 →
Features
Lock Assembly,left Hand — FSC 1660
Identification
NSN: 1660-01-032-6778
NIIN: 010326778
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
General Description
The Lock Assembly,left Hand, cataloged under National Stock Number 1660-01-032-6778, is classified within Federal Supply Class 1660 (Aircraft Air Conditioning, Heating, and Pressurizing Equipment) of the Aircraft Components and Accessories group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
1660-01-032-6778
Item Name
Lock Assembly,left Hand
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Status
ACTIVE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL Q — CCL Item — Commerce Control List
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4220-01-334-0970200300.3POSSIBLE MATCH
UNDERWEAR,DIVER'S DRY SUIT
Possible match (shared part number)Typhoon Water Wares Ltd
4220-01-335-8774200300.5POSSIBLE MATCH
UNDERWEAR,DIVER'S DRY SUIT
Possible match (shared part number)Typhoon Water Wares Ltd
9330-01-387-04692003003POSSIBLE MATCH
PLASTIC SHEET
Possible match (shared part number)Northrop Grumman Systems Corp Dba Northrop Grumman Computing Systems
7930-01-508-32262003003POSSIBLE MATCH
CLEANER,INDUSTRIAL,MULTI PURPOSE
Possible match (shared part number)Birsch Industries, Inc. Dba Birsch Industries Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
200300-3
5/9Secondary reference
U.S. Government activity
200300-5
3/9Design control — primary reference
U.S. Government activity
Related Parts
4220-01-334-0970POSSIBLE MATCH
UNDERWEAR,DIVER'S DRY SUIT
200300.3
4220-01-335-8774POSSIBLE MATCH
UNDERWEAR,DIVER'S DRY SUIT
200300.5
9330-01-387-0469POSSIBLE MATCH
PLASTIC SHEET
2003003
7930-01-508-3226POSSIBLE MATCH
CLEANER,INDUSTRIAL,MULTI PURPOSE
2003003
Frequently Asked Questions
What is NSN 1660-01-032-6778?
NSN 1660-01-032-6778 is a Lock Assembly,left Hand, classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What NSN replaces 1660-01-032-6778?
4 possible matches (shared part number, not a government interchangeability claim): 4220-01-334-0970, 4220-01-335-8774, 9330-01-387-0469. Verify interchangeability with system specifications before substitution.
What are the specifications of 1660-01-032-6778?
Key specifications for 1660-01-032-6778: End Item Identification: HOUNING PART NO. 025-750000-1. 0 specifications are documented in the U.S. Government catalog.
Is NSN 1660-01-032-6778 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 1660-01-032-6778?
NSN 1660-01-032-6778 has DEMIL Code Q. 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.