PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21439Adapter,valve,co2

Kidde Technologies, Inc Div Kidde Aerospace and Defense · NSN 1680-00-485-4289 · FSC 1680 · No Item Name Available
Verified by PartsTable
NSN 1680-00-485-4289 — this item is cataloged by the U.S. Government under National Stock Number 1680-00-485-4289. Primary manufacturer part number: 21439.
Features
  • Adapter,valve,co2 — FSC 1680
  • 2 verified cross-references
  • Primary manufacturer: Kidde Technologies, Inc Div Kidde Aerospace and Defense
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Adapter,valve,co2, cataloged under National Stock Number 1680-00-485-4289, is classified within Federal Supply Class 1680 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Kidde Technologies, Inc Div Kidde Aerospace and Defense. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameAdapter,valve,co2
FSC / FSG1680 — No Item Name Available (FSG 16)
ManufacturersKidde-Fenwal, Llc (CAGE 0KDP7); Kidde Technologies, Inc Div Kidde Aerospace and Defense (CAGE 61423)
Technical Specifications
ParameterValue
NSN1680-00-485-4289
Primary Part Number21439
Item NameAdapter,valve,co2
FSC / FSG1680 / 16 — No Item Name Available
ManufacturerKidde Technologies, Inc Div Kidde Aerospace and Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6685-00-063-0477 INTERCHANGEABLE
Thermometer,self-Indicating
5930-00-104-8571547456-3 INTERCHANGEABLE
Switch,thermostatic
Honeywell International, Inc Div Aerospace-Tucson
4720-00-105-2917 INTERCHANGEABLE
Hose,nonmetallic
5998-00-421-653121439 INTERCHANGEABLE
Circuit Card Assembly
Rex Systems Incorporated Dba Rex Systems Inc
5945-01-263-2806CUA-42-70003 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
5360-01-351-120721439 INTERCHANGEABLE
Spring,helical,compression
Parker Hannifin Corporation Div Hydraulic Systems Division
2935-01-601-182321439 INTERCHANGEABLE
Cooler,lubricating Oil,engine
J and K Electronics
Cross-Reference Index
Part NumberManufacturer
21439 Kidde-Fenwal, Llc (USA)
21439 PRIMARY Kidde Technologies, Inc Div Kidde Aerospace and Defense (USA)
Related Parts
6685-00-063-0477INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
5930-00-104-8571INTERCHANGEABLE
SWITCH,THERMOSTATIC
547456-3
4720-00-105-2917INTERCHANGEABLE
HOSE,NONMETALLIC
5998-00-421-6531INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21439
5945-01-263-2806INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
CUA-42-70003
5360-01-351-1207INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
21439
2935-01-601-1823INTERCHANGEABLE
COOLER,LUBRICATING OIL,ENGINE
21439

Frequently Asked Questions

What is NSN 1680-00-485-4289?

NSN 1680-00-485-4289 is a Adapter,valve,co2, manufactured by Kidde Technologies, Inc Div Kidde Aerospace and Defense, classified under FSC 1680 (No Item Name Available). Status: active.

What are the part numbers for NSN 1680-00-485-4289?

NSN 1680-00-485-4289 has 2 cross-referenced part numbers: 21439 (Kidde-Fenwal, Llc), 21439 (Kidde Technologies, Inc Div Kidde Aerospace and Defense).

What NSN replaces 1680-00-485-4289?

There are 7 known substitutes for 1680-00-485-4289: 6685-00-063-0477, 5930-00-104-8571, 4720-00-105-2917 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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