PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

915LWCalibrator,thermometer

E.m.a. Instruments, Inc. Dba E M a · NSN 6685-00-782-4291 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-782-4291 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-782-4291. Primary manufacturer part number: 915LW.
Features
  • Calibrator,thermometer — FSC 6685
  • Calibration Type: DEG CELSIUS
  • Furnished Items and Quantity: 1 GROUNDED 3 CONDUCTER EXTENSION POWER CABLE; 2 QUARTS OF LIQUID FOR THE TEMPERATURE BATH; NECESSARY TOOLS AND FREON CHARGING TUBE
  • Material: STEEL
  • Reference Data and Literature: T.O. 33D2-6-108-4
  • Functional Description: USED FOR TESTING AND CALIBRATING AIRCRAFT TEMPERATURE INSTRUMENTS
  • Supplementary Features: MANUFACTURERS NAME: INSTRUMENT TEMPERATURE TESTER
  • Shape: SQUARE
Applications
  • Applications requiring Steel construction
General Description

The Calibrator,thermometer, cataloged under National Stock Number 6685-00-782-4291, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is E.m.a. Instruments, Inc. Dba E M a. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-782-4291
Primary Part Number915LW
Item NameCalibrator,thermometer
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerE.m.a. Instruments, Inc. Dba E M a
StatusACTIVE
Calibration TypeDEG CELSIUS
Furnished Items and Quantity1 GROUNDED 3 CONDUCTER EXTENSION POWER CABLE; 2 QUARTS OF LIQUID FOR THE TEMPERATURE BATH; NECESSARY TOOLS AND FREON CHARGING TUBE
MaterialSTEEL
Reference Data and LiteratureT.O. 33D2-6-108-4
Functional DescriptionUSED FOR TESTING AND CALIBRATING AIRCRAFT TEMPERATURE INSTRUMENTS
Supplementary FeaturesMANUFACTURERS NAME: INSTRUMENT TEMPERATURE TESTER
ShapeSQUARE
Surface TreatmentCADMIUM
Calibration Accuracy RatingACCURACY +/- 1 DEG C DEGC
Unpackaged Unit Weight250.000 POUNDS LBS
Instrument Calibration RangeRANGE OF -51 DEG C TO +177 DEG C DEGC
Frequency Rating60.0 HERTZ NOMINAL
AC Voltage Rating110.0 VOLTS NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6685-00-092-7953 INTERCHANGEABLE
Calibrator,thermometer
3110-00-142-435098400 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
6685-00-530-3614 INTERCHANGEABLE
Indicator,temperature,thermocoup
6685-00-808-1984 INTERCHANGEABLE
Calibrator,thermometer
4710-01-359-254598400-1 INTERCHANGEABLE
Tube Assembly,metal
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
Cross-Reference Index
Part NumberManufacturer
915LW PRIMARY E.m.a. Instruments, Inc. Dba E M a (USA)
MJ-1 Department of the Air Force (USA)
98400 Production Control Units, Inc Div Production Control Units, Inc. (USA)
MIL-T-4748 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MG365 PRIMARY R S P Industries Inc (USA)
MG365 Frigitemp Corp (USA)
Related Parts
6685-00-092-7953INTERCHANGEABLE
CALIBRATOR,THERMOMETER
3110-00-142-4350INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
98400
6685-00-530-3614INTERCHANGEABLE
INDICATOR,TEMPERATURE,THERMOCOUP
6685-00-808-1984INTERCHANGEABLE
CALIBRATOR,THERMOMETER
4710-01-359-2545INTERCHANGEABLE
TUBE ASSEMBLY,METAL
98400-1

Frequently Asked Questions

What is NSN 6685-00-782-4291?

NSN 6685-00-782-4291 is a Calibrator,thermometer, manufactured by E.m.a. Instruments, Inc. Dba E M a, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-782-4291?

NSN 6685-00-782-4291 has 6 cross-referenced part numbers: 915LW (E.m.a. Instruments, Inc. Dba E M a), MJ-1 (Department of the Air Force), 98400 (Production Control Units, Inc Div Production Control Units, Inc.), MIL-T-4748 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MG365 (R S P Industries Inc) and 1 more.

What NSN replaces 6685-00-782-4291?

There are 5 known substitutes for 6685-00-782-4291: 6685-00-092-7953, 3110-00-142-4350, 6685-00-530-3614 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 915LW?

Key specifications for 915LW: Overall Height: 28.000 INCHES NOMINAL IN; Overall Width: 18.000 INCHES NOMINAL IN; Calibration Type: DEG CELSIUS; Overall Depth: 18.000 INCHES NOMINAL IN. 17 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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