NSN 1660-00-337-4574 · NIIN 003374574 · Part number 18299
Triumph Thermal Systems - Maryland, Inc. · FSC 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment · FSG 16 — Aircraft Components and Accessories · CAGE 01359
Government record, cited
NSN 1660-00-337-4574 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-337-4574. Manufacturer of record part number: 18299.
Also searched as1660-00-337-4574 ·
1660003374574 ·
NIIN 003374574 ·
00-337-4574 ·
FSC 1660 Aircraft Air Conditioning, Heating, and Pressurizing Equipment · CAGE 01359 · 18299
General Characteristics Item Description: STEEL,1.720 IN. L,0.500 IN. W,USED ON P/N 18801-1 AIR CONITIONER IN
1 manufacturer part number on file
Manufacturer of record: Triumph Thermal Systems - Maryland, Inc.
Identification
NSN: 1660-00-337-4574
NIIN: 003374574
FSC: 1660 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
FSG: 16 — Aircraft Components and Accessories
Primary part number: 18299
Manufacturer: Triumph Thermal Systems - Maryland, Inc.
General Description
The Clamp,flexible, cataloged under National Stock Number 1660-00-337-4574, 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 Triumph Thermal Systems - Maryland, Inc.. Government technical data includes 1 specification, 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. 5 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
1660-00-337-4574
Primary Part Number
18299
Item Name
Clamp,flexible
FSC / FSG
1660 / 16 — Aircraft Air Conditioning, Heating, and Pressurizing Equipment
Manufacturer
Triumph Thermal Systems - Maryland, Inc.
Status
ACTIVE
General Characteristics Item Description
STEEL,1.720 IN. L,0.500 IN. W,USED ON P/N 18801-1 AIR CONITIONER IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
2990-00-459-699018299POSSIBLE MATCH
RETAINER ASSEMBLY
Possible match (shared part number)Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5950-00-556-956805596POSSIBLE MATCH
REACTOR
Possible match (shared part number)L3harris Technologies, Inc. Div Space and Airborne Systems
5935-01-007-2581GC810RR1POSSIBLE MATCH
CONNECTOR,PLUG,ELECTRICAL
Possible match (shared part number)Northrop Grumman Systems Corporation
5315-01-230-156318299POSSIBLE MATCH
PIN,STRAIGHT,HEADED
Possible match (shared part number)Dana Commercial Vehicle Products, Llc
5330-01-285-484718299POSSIBLE MATCH
GASKET
Possible match (shared part number)Coffin Turbo Pump Inc
NSN 1660-00-337-4574 is a Clamp,flexible, manufactured by Triumph Thermal Systems - Maryland, Inc., classified under FSC 1660, Aircraft Air Conditioning, Heating, and Pressurizing Equipment. Status: active.
What part numbers are listed for NSN 1660-00-337-4574?
NSN 1660-00-337-4574 has 1 manufacturer part number on file: 18299 (Triumph Thermal Systems - Maryland, Inc.).
What NSN replaces 1660-00-337-4574?
5 possible matches (shared part number, not a government interchangeability claim): 2990-00-459-6990, 5950-00-556-9568, 5935-01-007-2581. Verify interchangeability with system specifications before substitution.
What are the specifications of 18299?
Key specifications for 18299: General Characteristics Item Description: STEEL,1.720 IN. L,0.500 IN. W,USED ON P/N 18801-1 AIR CONITIONER IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 1660-00-337-4574 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.