PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PL-645Thermometer,self-Indicating

Honeywell International Inc Div Environmental Systems & Services · NSN 6685-01-282-9411 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-282-9411 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-282-9411. Primary manufacturer part number: PL-645.
Features
  • Thermometer,self-Indicating — FSC 6685
  • 2 verified cross-references
  • Primary manufacturer: Honeywell International Inc Div Environmental Systems & Services
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Thermometer,self-Indicating, cataloged under National Stock Number 6685-01-282-9411, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Honeywell International Inc Div Environmental Systems & Services. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameThermometer,self-Indicating
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersHoneywell International Inc Div Environmental Systems & Services (CAGE 70308)
Technical Specifications
ParameterValue
NSN6685-01-282-9411
Primary Part NumberPL-645
Item NameThermometer,self-Indicating
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHoneywell International Inc Div Environmental Systems & Services
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6685-01-172-5362 INTERCHANGEABLE
Thermometer,self-Indicating
5940-01-282-9357 INTERCHANGEABLE
Terminal,stud
9150-01-282-9394RG-19 INTERCHANGEABLE
Grease No Oxide
Honeywell International Inc Div Environmental Systems & Services
6630-01-282-9414 INTERCHANGEABLE
Tester,battery Electrolyte Solut
5120-01-283-2793 INTERCHANGEABLE
Wrench Connector Bolt
6140-01-284-1098 INTERCHANGEABLE
Battery Unit,3 Cell
Cross-Reference Index
Part NumberManufacturer
PL-645 Honeywell International Inc Div Environmental Systems & Services (USA)
ML-3-31904 Honeywell International Inc Div Environmental Systems & Services (USA)
Related Parts
6685-01-172-5362INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
5940-01-282-9357INTERCHANGEABLE
TERMINAL,STUD
9150-01-282-9394INTERCHANGEABLE
GREASE NO OXIDE
RG-19
6630-01-282-9414INTERCHANGEABLE
TESTER,BATTERY ELECTROLYTE SOLUT
5120-01-283-2793INTERCHANGEABLE
WRENCH CONNECTOR BOLT
6140-01-284-1098INTERCHANGEABLE
BATTERY UNIT,3 CELL

Frequently Asked Questions

What is NSN 6685-01-282-9411?

NSN 6685-01-282-9411 is a Thermometer,self-Indicating, manufactured by Honeywell International Inc Div Environmental Systems & Services, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-282-9411?

NSN 6685-01-282-9411 has 2 cross-referenced part numbers: PL-645 (Honeywell International Inc Div Environmental Systems & Services), ML-3-31904 (Honeywell International Inc Div Environmental Systems & Services).

What NSN replaces 6685-01-282-9411?

There are 6 known substitutes for 6685-01-282-9411: 6685-01-172-5362, 5940-01-282-9357, 9150-01-282-9394 and 3 more. Verify interchangeability with system specifications before substitution.

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