PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1281Seat Assembly,valve

Avox Systems Inc Dba Avox Systems Inc · NSN 1660-00-180-5553 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-180-5553 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-180-5553. Primary manufacturer part number: A1281.
Features
  • Seat Assembly,valve — FSC 1660
  • 1 verified cross-reference
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat Assembly,valve, cataloged under National Stock Number 1660-00-180-5553, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat Assembly,valve
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersAvox Systems Inc Dba Avox Systems Inc (CAGE 53655)
Technical Specifications
ParameterValue
NSN1660-00-180-5553
Primary Part NumberA1281
Item NameSeat Assembly,valve
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5307-00-466-7274799039 INTERCHANGEABLE
Stud,plain
Dana Off Highway Products, Llc
5935-00-665-652916S63475-2801 INTERCHANGEABLE
Socket,plug-in Electronic Compon
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4730-00-883-3964 INTERCHANGEABLE
Packing Nut
Cross-Reference Index
Part NumberManufacturer
A1281 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
5307-00-466-7274INTERCHANGEABLE
STUD,PLAIN
799039
5935-00-665-6529INTERCHANGEABLE
SOCKET,PLUG-IN ELECTRONIC COMPON
16S63475-2801
4730-00-883-3964INTERCHANGEABLE
PACKING NUT

Frequently Asked Questions

What is NSN 1660-00-180-5553?

NSN 1660-00-180-5553 is a Seat Assembly,valve, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-180-5553?

NSN 1660-00-180-5553 has 1 cross-referenced part number: A1281 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-00-180-5553?

There are 3 known substitutes for 1660-00-180-5553: 5307-00-466-7274, 5935-00-665-6529, 4730-00-883-3964. Verify interchangeability with system specifications before substitution.

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