PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILG8266Gage,liquid Oxygen Content,dial

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 6685-00-526-4443 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-526-4443 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-526-4443. Primary manufacturer part number: MILG8266.
Features
  • Gage,liquid Oxygen Content,dial — FSC 6685
  • Connection Quantity: 4
  • Pointer Color: BLACK
  • Dial Size: 1-7/8 IN. DIA IN
  • Scale Name: PRESSURE
  • Actuation Type: DIAPHRAGM
  • Scale Smallest Increment: 1.0 LITERS
  • Adjustability: NONADJUSTABLE
Applications
  • Applications requiring Glass Protective Crystal construction
General Description

The Gage,liquid Oxygen Content,dial, cataloged under National Stock Number 6685-00-526-4443, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-526-4443
Primary Part NumberMILG8266
Item NameGage,liquid Oxygen Content,dial
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Connection Quantity4
Pointer ColorBLACK
Dial Size1-7/8 IN. DIA IN
Scale NamePRESSURE
Actuation TypeDIAPHRAGM
Scale Smallest Increment1.0 LITERS
AdjustabilityNONADJUSTABLE
Connector Type VentPROVIDED
Scale Range+0.000 TO 5.000 LITERS
Scale TypeSINGLE
Pointer TypeINDICATING
Connection TypeINTERNAL
MaterialGLASS PROTECTIVE CRYSTAL
Scale Inscription/background ColorWHITE FIGURES ON BLACK BACKGROUND
Pointer MarkingFLOURESCENT TIP
Scale AccuracyNOT RATED
Graduation Unit1.0 LITERS
Connection LocationBACK AND UPPER
Surface TreatmentENAMEL CASE
Mounting MethodFLUSH PANEL
Unable to DecodeUNABLE TO DECODE
MaterialALUMINUM CASE
MaterialRUBBER ACTUATING ELEMENT
Connection Size1/6 IN. ANPT IN
Bolt Circle Diameter2.625 INCHES NOMINAL IN
Mounting Hole Quantity4
Mounting Hole Diameter0.170 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
6685-00-526-444910802 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
6685-00-526-7584 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
6685-00-727-334110802-1A INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
Ingersoll-Rand Company Dba Ingersoll-Rand
6685-00-784-3525 INTERCHANGEABLE
Gage,liquid Oxygen Content,dial
5940-01-013-143210-802-1 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
5999-01-199-4849 INTERCHANGEABLE
Mounting Pad,electrical-Electron
6625-01-587-9381108021 INTERCHANGEABLE
Case,electrical-Electronic Test
Plano Molding Company Dba Plano Custom Molding & Engrg
6930-01-667-315610-8021 INTERCHANGEABLE
Indicator Simulated
Simtek, Inc. Dba Simtek Inc
Cross-Reference Index
Part NumberManufacturer
MILG8266 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10802-1 Ingersoll-Rand Company Dba Ingersoll-Rand (USA)
Related Parts
6685-00-526-4449INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
10802
6685-00-526-7584INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
6685-00-727-3341INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
10802-1A
6685-00-784-3525INTERCHANGEABLE
GAGE,LIQUID OXYGEN CONTENT,DIAL
5940-01-013-1432INTERCHANGEABLE
TERMINAL,STUD
10-802-1
5999-01-199-4849INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
6625-01-587-9381INTERCHANGEABLE
CASE,ELECTRICAL-ELECTRONIC TEST
108021
6930-01-667-3156INTERCHANGEABLE
INDICATOR SIMULATED
10-8021

Frequently Asked Questions

What is NSN 6685-00-526-4443?

NSN 6685-00-526-4443 is a Gage,liquid Oxygen Content,dial, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-526-4443?

NSN 6685-00-526-4443 has 2 cross-referenced part numbers: MILG8266 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10802-1 (Ingersoll-Rand Company Dba Ingersoll-Rand).

What NSN replaces 6685-00-526-4443?

There are 8 known substitutes for 6685-00-526-4443: 6685-00-526-4449, 6685-00-526-7584, 6685-00-727-3341 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILG8266?

Key specifications for MILG8266: Overall Width: 2.375 INCHES NOMINAL IN; Overall Height: 2.375 INCHES NOMINAL IN; Overall Depth: 2.468 INCHES NOMINAL IN; Connection Quantity: 4. 30 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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