PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

02-380Barometer,mercurial

Fisher Scientific Worldwide · NSN 6685-00-991-5461 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-991-5461 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-991-5461. Primary manufacturer part number: 02-380.
Features
  • Barometer,mercurial — FSC 6685
  • Functional Description: ADJUST LEVEL OF MERCURY POOL SO ITS SURFACE JUST TOUCHES THE WHITE ZERO POINTER WHICH FIXES ZERO POINT OF COLUMN; USE SCALE AND VERNIER TO READ COLUMN HEIGHT; MAKE CORRECTIONS FOR TEMP AND GRAVITY AS SHOWN IN INSTRUCTIONS, THIS WILL GIVE TRUE BAROMETRIC PRESSURE AT DESIRED LOCATION
  • Tube Bore Diameter: 0.250 INCHES NOMINAL IN
  • Cistern Type: ADJUSTABLE
  • Graduation Unit: 0.010 INCHES IN
  • Scale Range: +25.5 TO 31.7 INCHES ABSOLUTE PRESSURE BELOW BAROMETER IN
  • 4 verified cross-references
  • Primary manufacturer: Fisher Scientific Worldwide
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Barometer,mercurial, cataloged under National Stock Number 6685-00-991-5461, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Fisher Scientific Worldwide. Government technical data includes 5 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6685-00-991-5461
Primary Part Number02-380
Item NameBarometer,mercurial
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerFisher Scientific Worldwide
StatusACTIVE
Functional DescriptionADJUST LEVEL OF MERCURY POOL SO ITS SURFACE JUST TOUCHES THE WHITE ZERO POINTER WHICH FIXES ZERO POINT OF COLUMN; USE SCALE AND VERNIER TO READ COLUMN HEIGHT; MAKE CORRECTIONS FOR TEMP AND GRAVITY AS SHOWN IN INSTRUCTIONS, THIS WILL GIVE TRUE BAROMETRIC PRESSURE AT DESIRED LOCATION
Tube Bore Diameter0.250 INCHES NOMINAL IN
Cistern TypeADJUSTABLE
Graduation Unit0.010 INCHES IN
Scale Range+25.5 TO 31.7 INCHES ABSOLUTE PRESSURE BELOW BAROMETER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5342-00-084-778055347 INTERCHANGEABLE
Coupling,clamp,grooved
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5325-00-489-3073MP1641-6 INTERCHANGEABLE
Grommet,nonmetallic
Bae Systems Information and Electronic Systems Integration Inc.
3030-00-528-4614 INTERCHANGEABLE
Belt,v
3030-00-528-4634 INTERCHANGEABLE
Belt,v
5325-00-725-26952186 INTERCHANGEABLE
Grommet,nonmetallic
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3810-00-763-7728 INTERCHANGEABLE
Crane,wheel Mounted
3030-00-919-90965L380 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
5325-00-954-4397 INTERCHANGEABLE
Grommet,nonmetallic
5120-00-999-15042380 INTERCHANGEABLE
Puller,mechanical
Wta Tool Llc
6625-01-070-7854 INTERCHANGEABLE
Generator,signal
Cross-Reference Index
Part NumberManufacturer
02-380 PRIMARY Fisher Scientific Worldwide (USA)
02-380 Fisher Scientific Company L.l.c. (USA)
2-380 Fisher Scientific Worldwide (USA)
2-380 Fisher Scientific Company L.l.c. (USA)
Related Parts
5342-00-084-7780INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
55347
5325-00-489-3073INTERCHANGEABLE
GROMMET,NONMETALLIC
MP1641-6
3030-00-528-4614INTERCHANGEABLE
BELT,V
3030-00-528-4634INTERCHANGEABLE
BELT,V
5325-00-725-2695INTERCHANGEABLE
GROMMET,NONMETALLIC
2186
3810-00-763-7728INTERCHANGEABLE
CRANE,WHEEL MOUNTED
3030-00-919-9096INTERCHANGEABLE
BELT,V
5L380
5325-00-954-4397INTERCHANGEABLE
GROMMET,NONMETALLIC
5120-00-999-1504INTERCHANGEABLE
PULLER,MECHANICAL
2380
6625-01-070-7854INTERCHANGEABLE
GENERATOR,SIGNAL
5310-01-248-7787INTERCHANGEABLE
WASHER,FLAT
2380
5331-01-266-2971INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 6685-00-991-5461?

NSN 6685-00-991-5461 is a Barometer,mercurial, manufactured by Fisher Scientific Worldwide, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-00-991-5461?

NSN 6685-00-991-5461 has 4 cross-referenced part numbers: 02-380 (Fisher Scientific Worldwide), 02-380 (Fisher Scientific Company L.l.c.), 2-380 (Fisher Scientific Worldwide), 2-380 (Fisher Scientific Company L.l.c.).

What NSN replaces 6685-00-991-5461?

There are 12 known substitutes for 6685-00-991-5461: 5342-00-084-7780, 5325-00-489-3073, 3030-00-528-4614 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 02-380?

Key specifications for 02-380: Functional Description: ADJUST LEVEL OF MERCURY POOL SO ITS SURFACE JUST TOUCHES THE WHITE ZERO POINTER WHICH FIXES ZERO POINT OF COLUMN; USE SCALE AND VERNIER TO READ COLUMN HEIGHT; MAKE CORRECTIONS FOR TEMP AND GRAVITY AS SHOWN IN INSTRUCTIONS, THIS WILL GIVE TRUE BAROMETRIC PRESSURE AT DESIRED LOCATION; Tube Bore Diameter: 0.250 INCHES NOMINAL IN; Overall Width: 3.000 INCHES NOMINAL IN; Overall Length: 42.000 INCHES NOMINAL IN. 8 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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