PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

157E3-2003Thermometer,indicating,capillary

Kurz & Root Generator Company, Llc · NSN 6685-00-677-7134 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-677-7134 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-677-7134. Primary manufacturer part number: 157E3-2003.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • Bulb Connection Type: THREADED
  • Scale Accuracy Rating: PORM 2 PCT MIDDLE 1/3 OF SCALE,PORM 3 PCT REMAINDER
  • Bulb Overall Length: 2.750 INCHES NOMINAL IN
  • Scale Type: CONCENTRIC DIAL
  • Material: COPPER BULB
  • Style Designator: PLAIN RIGID
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY 1/2 IN. ADAPTER BUSHING W/5/8-18 BULB THD IN
Applications
  • Applications requiring Copper Bulb construction
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-677-7134, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Kurz & Root Generator Company, Llc. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-677-7134
Primary Part Number157E3-2003
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerKurz & Root Generator Company, Llc
StatusACTIVE
Bulb Connection TypeTHREADED
Scale Accuracy RatingPORM 2 PCT MIDDLE 1/3 OF SCALE,PORM 3 PCT REMAINDER
Bulb Overall Length2.750 INCHES NOMINAL IN
Scale TypeCONCENTRIC DIAL
MaterialCOPPER BULB
Style DesignatorPLAIN RIGID
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY 1/2 IN. ADAPTER BUSHING W/5/8-18 BULB THD IN
Bulb TypePLAIN RIGID
Mounting Thread Quantity32 PER INCH
Bulb Tip Length1.313 INCHES NOMINAL IN
Indicator Connection MethodFLEXIBLE TUBE
Dial Diameter2.000 INCHES NOMINAL IN
Scale Smallest Increment10.0 DEG FAHRENHEIT
Bulb StylePLAIN BULB
Features ProvidedZERO ADJUSTMENT
Pointer/pen Type and Quantity1 INDICATING SINGLE
Active Portion Diameter0.344 INCHES NOMINAL IN
Extension Neck Length1.500 INCHES NOMINAL IN
Mounting Facility Screw Thread Series DesignatorUNF
Flexible Tube Length72.000 INCHES NOMINAL IN
Mounting Facility Nominal Screw Thread Diameter0.190 INCHES IN
Bulb Quantity1
Actuating MediumVAPOR TENSION
Mounting Facility Type and Quantity2 THREADED STUD(S)
Scale Inscription/background ColorWHITE MARKING ON BLACK BACKGROUND
Active Portion Length1.500 INCHES NOMINAL IN
Case Diameter2.031 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6620-00-064-4964 INTERCHANGEABLE
Gage,water Temperat
1560-00-129-6286110-072-3 INTERCHANGEABLE
Bumper,glare Shield
Bell Textron Inc
5905-00-521-179997004-J8201 INTERCHANGEABLE
Resistor,fixed,film
Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (drawings)
6685-00-524-9210 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-786-4050 INTERCHANGEABLE
Thermometer,indicating,capillary
6685-00-977-4272 INTERCHANGEABLE
Thermometer,indicating,capillary
5930-01-171-1675110-072 INTERCHANGEABLE
Switch,pressure
Data General Corporation
6620-01-229-6478 INTERCHANGEABLE
Indicator,engine Temperature
5998-01-289-8559 INTERCHANGEABLE
Circuit Card Assembly
5340-01-601-9013110072 INTERCHANGEABLE
Bumper,rubber
Minor Rubber Co Inc
Cross-Reference Index
Part NumberManufacturer
157E3-2003 Kurz & Root Generator Company, Llc (USA)
20T-220X4 Enovation Controls Llc (USA)
20T-250X4 Enovation Controls Llc (USA)
20T21LC Enovation Controls Llc (USA)
1100-72 Enovation Controls Llc (USA)
Related Parts
6620-00-064-4964INTERCHANGEABLE
GAGE,WATER TEMPERAT
1560-00-129-6286INTERCHANGEABLE
BUMPER,GLARE SHIELD
110-072-3
5905-00-521-1799INTERCHANGEABLE
RESISTOR,FIXED,FILM
97004-J8201
6685-00-524-9210INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-786-4050INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
6685-00-977-4272INTERCHANGEABLE
THERMOMETER,INDICATING,CAPILLARY
5930-01-171-1675INTERCHANGEABLE
SWITCH,PRESSURE
110-072
6620-01-229-6478INTERCHANGEABLE
INDICATOR,ENGINE TEMPERATURE
5998-01-289-8559INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5340-01-601-9013INTERCHANGEABLE
BUMPER,RUBBER
110072

Frequently Asked Questions

What is NSN 6685-00-677-7134?

NSN 6685-00-677-7134 is a Thermometer,indicating,capillary, manufactured by Kurz & Root Generator Company, Llc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-677-7134?

NSN 6685-00-677-7134 has 5 cross-referenced part numbers: 157E3-2003 (Kurz & Root Generator Company, Llc), 20T-220X4 (Enovation Controls Llc), 20T-250X4 (Enovation Controls Llc), 20T21LC (Enovation Controls Llc), 1100-72 (Enovation Controls Llc).

What NSN replaces 6685-00-677-7134?

There are 10 known substitutes for 6685-00-677-7134: 6620-00-064-4964, 1560-00-129-6286, 5905-00-521-1799 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 157E3-2003?

Key specifications for 157E3-2003: Bulb Connection Type: THREADED; Scale Accuracy Rating: PORM 2 PCT MIDDLE 1/3 OF SCALE,PORM 3 PCT REMAINDER; Bulb Overall Length: 2.750 INCHES NOMINAL IN; Scale Type: CONCENTRIC DIAL. 28 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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