PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6-01321Thermometer,self-Indicating

Sigma Products & Mfg · NSN 6685-00-485-9634 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-485-9634 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-485-9634. Primary manufacturer part number: 6-01321.
Features
  • Thermometer,self-Indicating — FSC 6685
  • Securing Device Type: RINGRING
  • Material: GLASS OVERALL
  • Scale Type: ETCHED STEMETCHED STEM
  • Scale Measurement Range: +95.000 TO 155.000 DEG CELSIUS+95.000 TO 155.000 DEG CELSIUS
  • Scale Smallest Increment: 0.2 DEG CELSIUS0.2 DEG CELSIUS
  • Actuating Medium: MERCURYMERCURY
  • Design Type: FLUCTUATINGFLUCTUATING
Applications
  • Applications requiring Glass Overall construction
General Description

The Thermometer,self-Indicating, cataloged under National Stock Number 6685-00-485-9634, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN6685-00-485-9634
Primary Part Number6-01321
Item NameThermometer,self-Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerSigma Products & Mfg
StatusACTIVE
Securing Device TypeRINGRING
MaterialGLASS OVERALL
Scale TypeETCHED STEMETCHED STEM
Scale Measurement Range+95.000 TO 155.000 DEG CELSIUS+95.000 TO 155.000 DEG CELSIUS
Scale Smallest Increment0.2 DEG CELSIUS0.2 DEG CELSIUS
Actuating MediumMERCURYMERCURY
Design TypeFLUCTUATINGFLUCTUATING
Style DesignatorIMMERSION RING TOP
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-100-3084111320 INTERCHANGEABLE
Cone and Rollers,tapered Roller
General Motors Llc Dba General Motors Llc
6685-00-485-9635ASTM 68C INTERCHANGEABLE
Thermometer,self-Indicating
Weksler Glass Thermometer Corp
6685-00-494-9562 INTERCHANGEABLE
Thermometer,self-Indicating
5315-00-928-93946013-21 INTERCHANGEABLE
Pin,straight,headless
Woodward Hrt Inc
5930-01-128-14201HE1-RB INTERCHANGEABLE
Switch,sensitive
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
6-01321 PRIMARY Sigma Products & Mfg (USA)
6-01321 Psg Controls, Inc. (USA)
T3800 Sp Industries Inc Lurex Mfg (USA)
7912276-6 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
Related Parts
3110-00-100-3084INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
111320
6685-00-485-9635INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
ASTM 68C
6685-00-494-9562INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
5315-00-928-9394INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
6013-21
5930-01-128-1420INTERCHANGEABLE
SWITCH,SENSITIVE
1HE1-RB

Frequently Asked Questions

What is NSN 6685-00-485-9634?

NSN 6685-00-485-9634 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 6685-00-485-9634?

NSN 6685-00-485-9634 has 4 cross-referenced part numbers: 6-01321 (Sigma Products & Mfg), 6-01321 (Psg Controls, Inc.), T3800 (Sp Industries Inc Lurex Mfg), 7912276-6 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate).

What NSN replaces 6685-00-485-9634?

There are 5 known substitutes for 6685-00-485-9634: 3110-00-100-3084, 6685-00-485-9635, 6685-00-494-9562 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6-01321?

Key specifications for 6-01321: Overall Length: 15.000 INCHES NOMINAL15.000 INCHES NOMINAL IN; Securing Device Type: RINGRING; Material: GLASS OVERALL; Scale Type: ETCHED STEMETCHED STEM. 9 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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