FSC: 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
FSG: 66 — Instruments and Laboratory Equipment
General Description
The Barometer,aneroid, cataloged under National Stock Number 6685-00-032-4820, 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7 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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
6685-00-032-4820
Item Name
Barometer,aneroid
FSC / FSG
6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments
Status
ACTIVE
Scale Accuracy
0.1PERCENT OF FULL SCALE
Usage Design
DETERMINING DIFFERENCE IN ALTITUDE
Overall Diameter
7.500 INCHES NOMINAL IN
Chart Type
CONVERSION
Mounting Method
INTERNAL PIPE THREAD
Scale Range
+22.0 TO 31.5 INCHES HG IN
Graduation Unit
0.020 INCHES IN
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
FA185260E
3/9Design control — primary reference
Siemens Water Technologies Corp. Div Wallace & Tiernan Products
SC6660-0001-1
7/9Vendor item drawing reference
Drs Icas, Llc
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 6685-00-032-4820?
NSN 6685-00-032-4820 is a Barometer,aneroid, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
What are the specifications of 6685-00-032-4820?
Key specifications for 6685-00-032-4820: Scale Accuracy: 0.1PERCENT OF FULL SCALE; Usage Design: DETERMINING DIFFERENCE IN ALTITUDE; Overall Diameter: 7.500 INCHES NOMINAL IN; Chart Type: CONVERSION. 7 specifications are documented in the U.S. Government catalog.
Is NSN 6685-00-032-4820 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.