PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20A90450Regulator,oxygen,demand

Treadwell Corporation (delaware) Dba Treadwell Corp · NSN 6680-00-798-5495 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-798-5495 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-798-5495. Primary manufacturer part number: 20A90450.
Features
  • Regulator,oxygen,demand — FSC 6680
  • 9 verified cross-references
  • Primary manufacturer: Treadwell Corporation (delaware) Dba Treadwell Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Regulator,oxygen,demand, cataloged under National Stock Number 6680-00-798-5495, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Treadwell Corporation (delaware) Dba Treadwell Corp. This item has 9 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-798-5495
Primary Part Number20A90450
Item NameRegulator,oxygen,demand
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerTreadwell Corporation (delaware) Dba Treadwell Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1630-00-252-5337A72-98 INTERCHANGEABLE
Shield,expander Tube
Goodrich Corporation
6210-01-022-42457298 INTERCHANGEABLE
Lens,light
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
6130-01-379-9611 INTERCHANGEABLE
Power Supply
Cross-Reference Index
Part NumberManufacturer
20A90450 PRIMARY Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
40H50-M57 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
7298-24 Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives (USA)
12240-M57 Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
7298 Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
7298-24QCI Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
231-960-0902 Bellofram Corporation (USA)
960-092-000 Bellofram Corporation (USA)
7298-24 Treadwell Corporation (delaware) Dba Treadwell Corp (USA)
Related Parts
1630-00-252-5337INTERCHANGEABLE
SHIELD,EXPANDER TUBE
A72-98
6210-01-022-4245INTERCHANGEABLE
LENS,LIGHT
7298
6130-01-379-9611INTERCHANGEABLE
POWER SUPPLY

Frequently Asked Questions

What is NSN 6680-00-798-5495?

NSN 6680-00-798-5495 is a Regulator,oxygen,demand, manufactured by Treadwell Corporation (delaware) Dba Treadwell Corp, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-798-5495?

NSN 6680-00-798-5495 has 9 cross-referenced part numbers: 20A90450 (Treadwell Corporation (delaware) Dba Treadwell Corp), 40H50-M57 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 7298-24 (Siemens Industry, Inc. Dba Siemens Energy Div Process Industries and Drives), 12240-M57 (Treadwell Corporation (delaware) Dba Treadwell Corp), 7298 (Treadwell Corporation (delaware) Dba Treadwell Corp) and 4 more.

What NSN replaces 6680-00-798-5495?

There are 3 known substitutes for 6680-00-798-5495: 1630-00-252-5337, 6210-01-022-4245, 6130-01-379-9611. Verify interchangeability with system specifications before substitution.

What are the specifications of 20A90450?

Key specifications for 20A90450: Special Features: SELECTED AND TESTED FOR USE WITH ELECTROLYTIC OXYGEN GENERATOR. 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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