PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77600Indicator,oxygen Deficiency

Mine Safety Appliances Company · NSN 6665-00-475-3037 · FSC 6665 · No Item Name Available
Verified by PartsTable
NSN 6665-00-475-3037 — this item is cataloged by the U.S. Government under National Stock Number 6665-00-475-3037. Primary manufacturer part number: 77600.
Features
  • Indicator,oxygen Deficiency — FSC 6665
  • Functional Description: INDICATOR SHOWS DIRECTLY THE CONCENTRATION OF OXYGEN IN GASEOUS MIXTURES AT THE LOCATION OF THE SAMPLING LINE INLET AT THE TIME OF TESTS
  • 4 verified cross-references
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,oxygen Deficiency, cataloged under National Stock Number 6665-00-475-3037, is classified within Federal Supply Class 6665 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mine Safety Appliances Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6665-00-475-3037
Primary Part Number77600
Item NameIndicator,oxygen Deficiency
FSC / FSG6665 / 66 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
Functional DescriptionINDICATOR SHOWS DIRECTLY THE CONCENTRATION OF OXYGEN IN GASEOUS MIXTURES AT THE LOCATION OF THE SAMPLING LINE INLET AT THE TIME OF TESTS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-144-8876 INTERCHANGEABLE
Bearing,ball,annular
6630-01-179-38323300-350250 INTERCHANGEABLE
Analyzer,oxygen
Honeywell Analytics Inc.
5330-01-322-284477-600 INTERCHANGEABLE
Gasket
Dynaflex Products
5305-01-495-881077600 INTERCHANGEABLE
Screw,machine
Thales Defense & Security Inc Dba Thales Communications Inc
Cross-Reference Index
Part NumberManufacturer
08-77600 Mine Safety Appliances Company (USA)
MILI83760 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
DF77600 Mine Safety Appliances Company (USA)
77600 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
3110-00-144-8876INTERCHANGEABLE
BEARING,BALL,ANNULAR
6630-01-179-3832INTERCHANGEABLE
ANALYZER,OXYGEN
3300-350250
5330-01-322-2844INTERCHANGEABLE
GASKET
77-600
5305-01-495-8810INTERCHANGEABLE
SCREW,MACHINE
77600

Frequently Asked Questions

What is NSN 6665-00-475-3037?

NSN 6665-00-475-3037 is a Indicator,oxygen Deficiency, manufactured by Mine Safety Appliances Company, classified under FSC 6665 (No Item Name Available). Status: active.

What are the part numbers for NSN 6665-00-475-3037?

NSN 6665-00-475-3037 has 4 cross-referenced part numbers: 08-77600 (Mine Safety Appliances Company), MILI83760 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), DF77600 (Mine Safety Appliances Company), 77600 (Mine Safety Appliances Company).

What NSN replaces 6665-00-475-3037?

There are 4 known substitutes for 6665-00-475-3037: 3110-00-144-8876, 6630-01-179-3832, 5330-01-322-2844 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 77600?

Key specifications for 77600: Overall Height: 5.750 INCHES NOMINAL IN; Functional Description: INDICATOR SHOWS DIRECTLY THE CONCENTRATION OF OXYGEN IN GASEOUS MIXTURES AT THE LOCATION OF THE SAMPLING LINE INLET AT THE TIME OF TESTS; Special Features: ACCURACY +/- 1/2 PERCENT OXYGEN THROUGHOUT SCALE RANGE; LARGE FAN SHAPED METER CALIBRATED IN PERCENTAGE OF OXYGEN BY VOLUME; ALUMINUM CASE; SINGLE DRY CELL BATTERY; RANGE 0 TO 25 PERCENT OF OXYGEN CONTENT BY VOLUME; INCLUDES FLEXIBLE SYNTHETIC RUBBER TUBING TO CONVEY SMAPLE TO INSTRUMENT INLET; ITEM FITTED WITH CARRYING STRAPS; Overall Width: 4.125 INCHES NOMINAL IN. 6 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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