PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B-80Glass,liquid Sight Indicator,fla

Wilmington Instrument Co. Inc. · NSN 6680-01-443-4509 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-443-4509 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-443-4509. Primary manufacturer part number: B-80.
Features
  • Glass,liquid Sight Indicator,fla — FSC 6680
  • Design Type: REFLEX
  • Overall Thickness: 0.062 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Wilmington Instrument Co. Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Glass,liquid Sight Indicator,fla, cataloged under National Stock Number 6680-01-443-4509, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Wilmington Instrument Co. Inc.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-443-4509
Primary Part NumberB-80
Item NameGlass,liquid Sight Indicator,fla
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerWilmington Instrument Co. Inc.
StatusACTIVE
Design TypeREFLEX
Overall Thickness0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
7920-00-269-09337920002690933 INTERCHANGEABLE
Brush,wire,scratch
Gordon Brush Mfg. Co., Inc.
4730-00-343-1579B80 INTERCHANGEABLE
Packing Nut
Wildfire Pacific Inc
6625-00-764-29377907494 INTERCHANGEABLE
Lead,test
Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
3030-00-896-0542B80 INTERCHANGEABLE
Belt,v
Emerson Electric Co Browning Mfg Div
6635-01-127-9829 INTERCHANGEABLE
Test Block
3460-01-185-7359B80 INTERCHANGEABLE
Wheel,abrasive
Abb Motors & Mechanical Inc Div Abb Motors and Mechanical Inc.
3820-01-273-8391ACVC-QA1215 INTERCHANGEABLE
Auger,earth,truck Mounted
U S Army Tank Automotive Command Amsta-Im-Mm
6605-01-669-1161B-80 INTERCHANGEABLE
Compass,magnetic,mounted
Ritchie E S and Sons Inc
Cross-Reference Index
Part NumberManufacturer
B-80 Wilmington Instrument Co. Inc. (USA)
B-80 Ernst Flow Industries (USA)
Related Parts
7920-00-269-0933INTERCHANGEABLE
BRUSH,WIRE,SCRATCH
7920002690933
4730-00-343-1579INTERCHANGEABLE
PACKING NUT
B80
6625-00-764-2937INTERCHANGEABLE
LEAD,TEST
7907494
3030-00-896-0542INTERCHANGEABLE
BELT,V
B80
6635-01-127-9829INTERCHANGEABLE
TEST BLOCK
3460-01-185-7359INTERCHANGEABLE
WHEEL,ABRASIVE
B80
3820-01-273-8391INTERCHANGEABLE
AUGER,EARTH,TRUCK MOUNTED
ACVC-QA1215
6605-01-669-1161INTERCHANGEABLE
COMPASS,MAGNETIC,MOUNTED
B-80

Frequently Asked Questions

What is NSN 6680-01-443-4509?

NSN 6680-01-443-4509 is a Glass,liquid Sight Indicator,fla, manufactured by Wilmington Instrument Co. Inc., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-443-4509?

NSN 6680-01-443-4509 has 2 cross-referenced part numbers: B-80 (Wilmington Instrument Co. Inc.), B-80 (Ernst Flow Industries).

What NSN replaces 6680-01-443-4509?

There are 8 known substitutes for 6680-01-443-4509: 7920-00-269-0933, 4730-00-343-1579, 6625-00-764-2937 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B-80?

Key specifications for B-80: Overall Width: 1.312 INCHES NOMINAL IN; Design Type: REFLEX; Overall Thickness: 0.062 INCHES NOMINAL IN; Special Features: FOR STEAM UP TO 400 PSI,SHOWS WATER LEVEL AND THE APPEARANCE IS BLACK BELOW THE LEVEL,WHITE ABOVE. 5 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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