Indication Method: RECEIVING ELECTRICAL DIGITAL DISPLAY
Material: PLASTIC CASE
Identification
NSN: 6685-01-549-2055
NIIN: 015492055
FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Control,temperature,indicating, cataloged under National Stock Number 6685-01-549-2055, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
6685-01-549-2055
Item Name
Control,temperature,indicating
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Status
ACTIVE
Maximum Overall Width
2.250 INCHES IN
Inclosure Type
ENCASED
Maximum Overall Length
6.625 INCHES IN
Maximum Overall Height
2.812 INCHES IN
Power Source
EXTERNAL
Indication Method
RECEIVING ELECTRICAL DIGITAL DISPLAY
Material
PLASTIC CASE
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
A419AEC-1
3/9Design control — primary reference
Johnson Controls, Inc. Dba Johnson Controls Inc
A419AEC-1C
5/9Secondary reference
Johnson Controls, Inc. Dba Johnson Controls Inc
No interchangeability data on file.
Other items in FSC 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6685-00-001-1475
6685-00-001-1475 · Item name not on file
6685-00-001-1503
CONTROL,TOTALIZER
6685-00-001-1643
6685-00-001-1643 · Item name not on file
6685-00-001-1711
GAGE,PRESSURE,DIAL INDICATING
6685-00-001-2099
6685-00-001-2099 · Item name not on file
6685-00-001-2100
6685-00-001-2100 · Item name not on file
6685-00-001-2101
6685-00-001-2101 · Item name not on file
6685-00-001-2102
6685-00-001-2102 · Item name not on file
Frequently Asked Questions
What is NSN 6685-01-549-2055?
NSN 6685-01-549-2055 is a Control,temperature,indicating, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What are the specifications of 6685-01-549-2055?
Key specifications for 6685-01-549-2055: Maximum Overall Width: 2.250 INCHES IN; Inclosure Type: ENCASED; Maximum Overall Length: 6.625 INCHES IN; Maximum Overall Height: 2.812 INCHES IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6685-01-549-2055 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.