PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PT102Thermometer,self-Indicating

Sigma Products & Mfg · NSN 6685-00-860-9908 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-860-9908 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-860-9908. Primary manufacturer part number: PT102.
Features
  • Thermometer,self-Indicating — FSC 6685
  • Material: GLASS OVERALL
  • Actuating Medium: MERCURYMERCURY
  • Design Type: FLUCTUATINGFLUCTUATING
  • Scale Type: ETCHED STEMETCHED STEM
  • Style Designator: IMMERSION RING TOP
  • Scale Inscription/background Color: BLACK MARKING ON WHITE BACKGROUNDBLACK MARKING ON WHITE BACKGROUND
  • Scale Smallest Increment: 2.0 DEG FAHRENHEIT2.0 DEG FAHRENHEIT
Applications
  • Applications requiring Glass Overall construction
General Description

The Thermometer,self-Indicating, cataloged under National Stock Number 6685-00-860-9908, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Sigma Products & Mfg. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-860-9908
Primary Part NumberPT102
Item NameThermometer,self-Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSigma Products & Mfg
StatusACTIVE
MaterialGLASS OVERALL
Actuating MediumMERCURYMERCURY
Design TypeFLUCTUATINGFLUCTUATING
Scale TypeETCHED STEMETCHED STEM
Style DesignatorIMMERSION RING TOP
Scale Inscription/background ColorBLACK MARKING ON WHITE BACKGROUNDBLACK MARKING ON WHITE BACKGROUND
Scale Smallest Increment2.0 DEG FAHRENHEIT2.0 DEG FAHRENHEIT
Scale Measurement Range+0.000 TO 220.000 DEG FAHRENHEIT+0.000 TO 220.000 DEG FAHRENHEIT
Armor Encased Tip TypePERFORATEDPERFORATED
Securing Device TypeRINGRING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4920-00-718-378721462 INTERCHANGEABLE
Module,power Supply
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
6680-00-812-8260 INTERCHANGEABLE
Transmitter,liquid Quantity
5325-00-974-05411930AS100-24 INTERCHANGEABLE
Stud,turnlock Fastener
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5930-01-048-011821462-1 INTERCHANGEABLE
Switch,sensitive
Sensata Technologies, Inc. Div Sensata Attleboro
4720-01-141-9053 INTERCHANGEABLE
Hose,preformed
7025-01-360-377521462 INTERCHANGEABLE
Interface Unit,automatic Data Pr
Kepco, Inc. Dba Kepco Inc Div Kepco Dynatronix
4320-01-417-225621462 INTERCHANGEABLE
Piston,pump
Parker Hannifin Corporation Div Hydraulic Systems Division
4940-01-467-7160PT-100AC INTERCHANGEABLE
Spray Outfit,paint
Smith Eastern Corp Div Airverter
5930-01-541-2195798C-10007 INTERCHANGEABLE
Switch,electronic
Meritor Specialty Products Llc
5905-01-567-7263PT-102 INTERCHANGEABLE
Resistor,thermal
Lake Shore Cryotronics, Inc.
Cross-Reference Index
Part NumberManufacturer
PT102 Psg Controls, Inc. (USA)
21462 Tycos Instruments Inc a Welch Allyn Co (USA)
PT102 PRIMARY Sigma Products & Mfg (USA)
Related Parts
4920-00-718-3787INTERCHANGEABLE
MODULE,POWER SUPPLY
21462
6680-00-812-8260INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
5325-00-974-0541INTERCHANGEABLE
STUD,TURNLOCK FASTENER
1930AS100-24
5930-01-048-0118INTERCHANGEABLE
SWITCH,SENSITIVE
21462-1
4720-01-141-9053INTERCHANGEABLE
HOSE,PREFORMED
7025-01-360-3775INTERCHANGEABLE
INTERFACE UNIT,AUTOMATIC DATA PR
21462
4320-01-417-2256INTERCHANGEABLE
PISTON,PUMP
21462
4940-01-467-7160INTERCHANGEABLE
SPRAY OUTFIT,PAINT
PT-100AC
5930-01-541-2195INTERCHANGEABLE
SWITCH,ELECTRONIC
798C-10007
5905-01-567-7263INTERCHANGEABLE
RESISTOR,THERMAL
PT-102
5430-01-718-4097INTERCHANGEABLE
TANK,PRESSURE
PT-102

Frequently Asked Questions

What is NSN 6685-00-860-9908?

NSN 6685-00-860-9908 is a Thermometer,self-Indicating, manufactured by Sigma Products & Mfg, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-860-9908?

NSN 6685-00-860-9908 has 3 cross-referenced part numbers: PT102 (Psg Controls, Inc.), 21462 (Tycos Instruments Inc a Welch Allyn Co), PT102 (Sigma Products & Mfg).

What NSN replaces 6685-00-860-9908?

There are 11 known substitutes for 6685-00-860-9908: 4920-00-718-3787, 6680-00-812-8260, 5325-00-974-0541 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PT102?

Key specifications for PT102: Material: GLASS OVERALL; Actuating Medium: MERCURYMERCURY; Design Type: FLUCTUATINGFLUCTUATING; Scale Type: ETCHED STEMETCHED STEM. 11 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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