PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MJ1Calibrator,thermometer

Department of the Air Force · NSN 6685-00-092-7953 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-092-7953 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-092-7953. Primary manufacturer part number: MJ1.
Features
  • Calibrator,thermometer — FSC 6685
  • Surface Treatment: CADMIUM
  • Calibration Accuracy Rating: ACCURACY +/- 1 DEG C DEGC
  • Supplementary Features: MANUFACTURERS NAME: INSTRUMENT TEMPERATURE TESTER
  • Functional Description: USED FOR TESTING AND CALIBRATING AIRCRAFT TEMPERATURE INSTRUMENTS
  • Material: STEEL
  • Reference Data and Literature: T.O. 33D2-6-108-4
  • Unpackaged Unit Weight: 250.000 POUNDS LBS
Applications
  • Applications requiring Steel construction
General Description

The Calibrator,thermometer, cataloged under National Stock Number 6685-00-092-7953, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Department of the Air Force. Government technical data includes 12 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6685-00-092-7953
Primary Part NumberMJ1
Item NameCalibrator,thermometer
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerDepartment of the Air Force
StatusCANCELLED
Surface TreatmentCADMIUM
Calibration Accuracy RatingACCURACY +/- 1 DEG C DEGC
Supplementary FeaturesMANUFACTURERS NAME: INSTRUMENT TEMPERATURE TESTER
Functional DescriptionUSED FOR TESTING AND CALIBRATING AIRCRAFT TEMPERATURE INSTRUMENTS
MaterialSTEEL
Reference Data and LiteratureT.O. 33D2-6-108-4
Unpackaged Unit Weight250.000 POUNDS LBS
Instrument Calibration RangeRANGE OF -51 DEG C TO +177 DEG C DEGC
Calibration TypeDEG CELSIUS
AC Voltage Rating110.0 VOLTS NOMINAL
Frequency Rating60.0 HERTZ NOMINAL
Furnished Items and Quantity1 GROUNDED 3 CONDUCTER EXTENSION POWER CABLE; 2 QUARTS OF LIQUID FOR THE TEMPERATURE BATH; NECESSARY TOOLS AND FREON CHARGING TUBE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6685-00-530-3614 INTERCHANGEABLE
Indicator,temperature,thermocoup
6685-00-782-4291915LW INTERCHANGEABLE
Calibrator,thermometer
E.m.a. Instruments, Inc. Dba E M a
6685-00-808-1984 INTERCHANGEABLE
Calibrator,thermometer
Cross-Reference Index
Part NumberManufacturer
MJ1 Department of the Air Force (USA)
MIL-T-4748 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6685-00-530-3614INTERCHANGEABLE
INDICATOR,TEMPERATURE,THERMOCOUP
6685-00-782-4291INTERCHANGEABLE
CALIBRATOR,THERMOMETER
915LW
6685-00-808-1984INTERCHANGEABLE
CALIBRATOR,THERMOMETER

Frequently Asked Questions

What is NSN 6685-00-092-7953?

NSN 6685-00-092-7953 is a Calibrator,thermometer, manufactured by Department of the Air Force, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-092-7953?

NSN 6685-00-092-7953 has 2 cross-referenced part numbers: MJ1 (Department of the Air Force), MIL-T-4748 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6685-00-092-7953?

There are 3 known substitutes for 6685-00-092-7953: 6685-00-530-3614, 6685-00-782-4291, 6685-00-808-1984. Verify interchangeability with system specifications before substitution.

What are the specifications of MJ1?

Key specifications for MJ1: Surface Treatment: CADMIUM; Overall Width: 18.000 INCHES NOMINAL IN; Calibration Accuracy Rating: ACCURACY +/- 1 DEG C DEGC; Supplementary Features: MANUFACTURERS NAME: INSTRUMENT TEMPERATURE TESTER. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6685-00-092-7953 still in active supply?

NSN 6685-00-092-7953 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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