PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

SK-1031Thermometer,self-Indicating,digi

Peerless Instrument Co., Inc. · NSN 6685-01-677-8394 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-677-8394 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-677-8394. Primary manufacturer part number: SK-1031.
Features
  • Thermometer,self-Indicating,digi — FSC 6685
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 4 verified cross-references
  • Primary manufacturer: Peerless Instrument Co., Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermometer,self-Indicating,digi, cataloged under National Stock Number 6685-01-677-8394, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Peerless Instrument Co., Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-01-677-8394
Primary Part NumberSK-1031
Item NameThermometer,self-Indicating,digi
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerPeerless Instrument Co., Inc.
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
4820-00-569-2681B3836 INTERCHANGEABLE
Valve,rotary,selector
Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc
6685-01-292-7873 INTERCHANGEABLE
Thermometer,self-Indicating,digi
Cross-Reference Index
Part NumberManufacturer
SK-1031 Peerless Instrument Co., Inc. (USA)
FLUKE51 Fluke Corp (USA)
11380PC3 Peerless Instrument Co., Inc. (USA)
FLUKE50S Fluke Corp (USA)
Related Parts
4820-00-569-2681INTERCHANGEABLE
VALVE,ROTARY,SELECTOR
B3836
6685-01-292-7873INTERCHANGEABLE
THERMOMETER,SELF-INDICATING,DIGI

Frequently Asked Questions

What is NSN 6685-01-677-8394?

NSN 6685-01-677-8394 is a Thermometer,self-Indicating,digi, manufactured by Peerless Instrument Co., Inc., classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-677-8394?

NSN 6685-01-677-8394 has 4 cross-referenced part numbers: SK-1031 (Peerless Instrument Co., Inc.), FLUKE51 (Fluke Corp), 11380PC3 (Peerless Instrument Co., Inc.), FLUKE50S (Fluke Corp).

What NSN replaces 6685-01-677-8394?

There are 2 known substitutes for 6685-01-677-8394: 4820-00-569-2681, 6685-01-292-7873. Verify interchangeability with system specifications before substitution.

What are the specifications of SK-1031?

Key specifications for SK-1031: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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