PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9021A-1Adapter,compressed Gas Cylinder

Avox Systems Inc Dba Avox Systems Inc · NSN 1660-01-428-6731 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-01-428-6731 — this item is cataloged by the U.S. Government under National Stock Number 1660-01-428-6731. Primary manufacturer part number: 9021A-1.
Features
  • Adapter,compressed Gas Cylinder — FSC 1660
  • 2 verified cross-references
  • Primary manufacturer: Avox Systems Inc Dba Avox Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Adapter,compressed Gas Cylinder, cataloged under National Stock Number 1660-01-428-6731, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-01-428-6731
Primary Part Number9021A-1
Item NameAdapter,compressed Gas Cylinder
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
6130-00-545-8975 INTERCHANGEABLE
Rectifier,metallic
6625-01-281-323213927 INTERCHANGEABLE
Meter,special Scale
Vaponics Inc
Cross-Reference Index
Part NumberManufacturer
9021A-1 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
13927 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
6130-00-545-8975INTERCHANGEABLE
RECTIFIER,METALLIC
6625-01-281-3232INTERCHANGEABLE
METER,SPECIAL SCALE
13927

Frequently Asked Questions

What is NSN 1660-01-428-6731?

NSN 1660-01-428-6731 is a Adapter,compressed Gas Cylinder, 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 1660-01-428-6731?

NSN 1660-01-428-6731 has 2 cross-referenced part numbers: 9021A-1 (Avox Systems Inc Dba Avox Systems Inc), 13927 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-01-428-6731?

There are 2 known substitutes for 1660-01-428-6731: 6130-00-545-8975, 6625-01-281-3232. Verify interchangeability with system specifications before substitution.

What are the specifications of 9021A-1?

Key specifications for 9021A-1: Special Features: FOR OXYGEN REGULATOR, P/N 9000A; RIGHT CYLINDER AND REGULATOR, P/N 9000A1, NSN 1660-00-607-4740 A. 1 total characteristics are documented in the Federal Logistics Information System.

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