PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20621-1Dial,mask Safety,ne

Avox Systems Inc Dba Avox Systems Inc · NSN 1660-00-942-8509 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-942-8509 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-942-8509. Primary manufacturer part number: 20621-1.
Features
  • Dial,mask Safety,ne — FSC 1660
  • 1 verified cross-reference
  • 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 Dial,mask Safety,ne, cataloged under National Stock Number 1660-00-942-8509, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDial,mask Safety,ne
FSC / FSG1660 — No Item Name Available (FSG 16)
ManufacturersAvox Systems Inc Dba Avox Systems Inc (CAGE 53655)
Technical Specifications
ParameterValue
NSN1660-00-942-8509
Primary Part Number20621-1
Item NameDial,mask Safety,ne
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2995-00-471-368521908-1 INTERCHANGEABLE
Parts Kit,valve
Hamilton Sundstrand Corporation Dba Collins Aerospace
5930-00-548-5484206211 INTERCHANGEABLE
Switch,pressure
Wiggins Lift Co Inc
3040-00-690-0381 INTERCHANGEABLE
Shaft,shouldered
5935-01-260-9669MS3452W20-6P INTERCHANGEABLE
Connector,receptacle,electrical
Sae International Dba Sae International
5930-01-345-2908206-211 INTERCHANGEABLE
Switch,slide
Cts Corp Electromechanical Div
Cross-Reference Index
Part NumberManufacturer
20621-1 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
2995-00-471-3685INTERCHANGEABLE
PARTS KIT,VALVE
21908-1
5930-00-548-5484INTERCHANGEABLE
SWITCH,PRESSURE
206211
3040-00-690-0381INTERCHANGEABLE
SHAFT,SHOULDERED
5935-01-260-9669INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
MS3452W20-6P
5930-01-345-2908INTERCHANGEABLE
SWITCH,SLIDE
206-211

Frequently Asked Questions

What is NSN 1660-00-942-8509?

NSN 1660-00-942-8509 is a Dial,mask Safety,ne, 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 1660-00-942-8509?

NSN 1660-00-942-8509 has 1 cross-referenced part number: 20621-1 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 1660-00-942-8509?

There are 5 known substitutes for 1660-00-942-8509: 2995-00-471-3685, 5930-00-548-5484, 3040-00-690-0381 and 2 more. Verify interchangeability with system specifications before substitution.

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