PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123778Thermometer,indicating,capillary

Arnold a Semler Inc · NSN 6685-00-310-3471 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-310-3471 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-310-3471. Primary manufacturer part number: 123778.
Features
  • Thermometer,indicating,capillary — FSC 6685
  • 2 verified cross-references
  • Primary manufacturer: Arnold a Semler Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermometer,indicating,capillary, cataloged under National Stock Number 6685-00-310-3471, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Arnold a Semler Inc. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameThermometer,indicating,capillary
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersArnold a Semler Inc (CAGE 50870); Howlett Eric (CAGE 80645)
Technical Specifications
ParameterValue
NSN6685-00-310-3471
Primary Part Number123778
Item NameThermometer,indicating,capillary
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerArnold a Semler Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4310-00-358-3728123-0104 INTERCHANGEABLE
Breather
Cummins Power Generation Inc.
3655-00-733-789417868 INTERCHANGEABLE
Yoke Ribbon Connecting
United Catalysts Inc
5305-01-273-835717868 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
6240-01-344-507550PAR20/CAP/NFL/130V INTERCHANGEABLE
Lamp,incandescent
Gte Products Corp Sylvania Miniature Lighting Div
Cross-Reference Index
Part NumberManufacturer
123778 Arnold a Semler Inc (USA)
17868 Howlett Eric (USA)
Related Parts
4310-00-358-3728INTERCHANGEABLE
BREATHER
123-0104
3655-00-733-7894INTERCHANGEABLE
YOKE RIBBON CONNECTING
17868
5305-01-273-8357INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
17868
6240-01-344-5075INTERCHANGEABLE
LAMP,INCANDESCENT
50PAR20/CAP/NFL/130V

Frequently Asked Questions

What is NSN 6685-00-310-3471?

NSN 6685-00-310-3471 is a Thermometer,indicating,capillary, manufactured by Arnold a Semler Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-310-3471?

NSN 6685-00-310-3471 has 2 cross-referenced part numbers: 123778 (Arnold a Semler Inc), 17868 (Howlett Eric).

What NSN replaces 6685-00-310-3471?

There are 4 known substitutes for 6685-00-310-3471: 4310-00-358-3728, 3655-00-733-7894, 5305-01-273-8357 and 1 more. Verify interchangeability with system specifications before substitution.

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