PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

14003Seat,valve,isobaric

Honeywell International, Inc Div Aerospace-Tucson · NSN 1660-00-485-3154 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-485-3154 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-485-3154. Primary manufacturer part number: 14003.
Features
  • Seat,valve,isobaric — FSC 1660
  • 3 verified cross-references
  • Primary manufacturer: Honeywell International, Inc Div Aerospace-Tucson
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve,isobaric, cataloged under National Stock Number 1660-00-485-3154, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Honeywell International, Inc Div Aerospace-Tucson. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve,isobaric
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersHoneywell International Inc. Div Aerospace - Torrance (CAGE 70210); Alliedsignal Inc Dba Allied-Signal Aerospace Co (CAGE 72599); Honeywell International, Inc Div Aerospace-Tucson (CAGE 64547)
Technical Specifications
ParameterValue
NSN1660-00-485-3154
Primary Part Number14003
Item NameSeat,valve,isobaric
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerHoneywell International, Inc Div Aerospace-Tucson
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4310-00-468-761414003 INTERCHANGEABLE
Ring,piston
Kaydon Ring & Seal Inc Dba Skf Precision Technologies
6210-00-964-406792081M INTERCHANGEABLE
Light,indicator
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5970-01-147-78421400-3 INTERCHANGEABLE
Sleeving,textile,electrical
Gudebrod, Inc.
5962-01-171-1591 INTERCHANGEABLE
Microcircuit
8310-01-316-8748C8846-5N2-5 INTERCHANGEABLE
Thread
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
3455-01-317-512714003 INTERCHANGEABLE
Holcutter Kit
Hougen Manufacturing, Inc
5306-01-556-46312136455 INTERCHANGEABLE
Bolt,machine
Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02
4810-01-633-642614003-5 INTERCHANGEABLE
Valve,gate
Morpac Industries, Inc Div Actuator
Cross-Reference Index
Part NumberManufacturer
14003 Honeywell International Inc. Div Aerospace - Torrance (USA)
14003 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
14003 PRIMARY Honeywell International, Inc Div Aerospace-Tucson (USA)
Related Parts
4310-00-468-7614INTERCHANGEABLE
RING,PISTON
14003
6210-00-964-4067INTERCHANGEABLE
LIGHT,INDICATOR
92081M
5970-01-147-7842INTERCHANGEABLE
SLEEVING,TEXTILE,ELECTRICAL
1400-3
5962-01-171-1591INTERCHANGEABLE
MICROCIRCUIT
8310-01-316-8748INTERCHANGEABLE
THREAD
C8846-5N2-5
3455-01-317-5127INTERCHANGEABLE
HOLCUTTER KIT
14003
5306-01-556-4631INTERCHANGEABLE
BOLT,MACHINE
2136455
4810-01-633-6426INTERCHANGEABLE
VALVE,GATE
14003-5

Frequently Asked Questions

What is NSN 1660-00-485-3154?

NSN 1660-00-485-3154 is a Seat,valve,isobaric, manufactured by Honeywell International, Inc Div Aerospace-Tucson, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-485-3154?

NSN 1660-00-485-3154 has 3 cross-referenced part numbers: 14003 (Honeywell International Inc. Div Aerospace - Torrance), 14003 (Alliedsignal Inc Dba Allied-Signal Aerospace Co), 14003 (Honeywell International, Inc Div Aerospace-Tucson).

What NSN replaces 1660-00-485-3154?

There are 8 known substitutes for 1660-00-485-3154: 4310-00-468-7614, 6210-00-964-4067, 5970-01-147-7842 and 5 more. Verify interchangeability with system specifications before substitution.

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