PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8540-00Indicator,oxygen Flow

Avox Systems Inc Dba Avox Systems Inc · NSN 6680-00-592-5592 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-592-5592 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-592-5592. Primary manufacturer part number: 8540-00.
Features
  • Indicator,oxygen Flow — FSC 6680
  • 3 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 Indicator,oxygen Flow, cataloged under National Stock Number 6680-00-592-5592, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Avox Systems Inc Dba Avox Systems Inc. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameIndicator,oxygen Flow
FSC / FSG6680 — No Item Name Available (FSG 66)
ManufacturersAvox Systems Inc Dba Avox Systems Inc (CAGE 53655); Us Army Aviation and Missile Command (CAGE 81996)
Technical Specifications
ParameterValue
NSN6680-00-592-5592
Primary Part Number8540-00
Item NameIndicator,oxygen Flow
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerAvox Systems Inc Dba Avox Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4940-00-006-09658-540 INTERCHANGEABLE
Maintenance Platform
C&h Distributors, Llc
5365-00-133-36628540 INTERCHANGEABLE
Spacer,sleeve
Dialight Corporation
5950-00-229-9797 INTERCHANGEABLE
Transformer,radio Frequency
5310-00-262-03597612520 INTERCHANGEABLE
Washer,lock
Us Army Aviation and Missile Command
5310-00-264-1151200074PC5 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
4820-00-617-650681-540 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Matheson Co Div of G D Searle Medical Products
3030-01-047-02968540 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
4820-01-185-2291E8540D51M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-192-4346E8540AF51M INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4820-01-230-11988540 PIECE 4 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
8540 Avox Systems Inc Dba Avox Systems Inc (USA)
6680L23X000 Us Army Aviation and Missile Command (USA)
8540-00 PRIMARY Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
4940-00-006-0965INTERCHANGEABLE
MAINTENANCE PLATFORM
8-540
5365-00-133-3662INTERCHANGEABLE
SPACER,SLEEVE
8540
5950-00-229-9797INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5310-00-262-0359INTERCHANGEABLE
WASHER,LOCK
7612520
5310-00-264-1151INTERCHANGEABLE
WASHER,LOCK
200074PC5
4820-00-617-6506INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
81-540
3030-01-047-0296INTERCHANGEABLE
BELT,V
8540
4820-01-185-2291INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8540D51M
4820-01-192-4346INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8540AF51M
4820-01-230-1198INTERCHANGEABLE
STEM,FLUID VALVE
8540 PIECE 4
5305-01-263-8487INTERCHANGEABLE
SCREW,MACHINE
8540
6130-01-369-0070INTERCHANGEABLE
POWER SUPPLY
8540

Frequently Asked Questions

What is NSN 6680-00-592-5592?

NSN 6680-00-592-5592 is a Indicator,oxygen Flow, manufactured by Avox Systems Inc Dba Avox Systems Inc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-592-5592?

NSN 6680-00-592-5592 has 3 cross-referenced part numbers: 8540 (Avox Systems Inc Dba Avox Systems Inc), 6680L23X000 (Us Army Aviation and Missile Command), 8540-00 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 6680-00-592-5592?

There are 12 known substitutes for 6680-00-592-5592: 4940-00-006-0965, 5365-00-133-3662, 5950-00-229-9797 and 9 more. Verify interchangeability with system specifications before substitution.

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