PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

304-BIndicator,liquid Quantity

Stewart-Warner Corporation · NSN 6680-00-981-7818 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-981-7818 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-981-7818. Primary manufacturer part number: 304-B.
Features
  • Indicator,liquid Quantity — FSC 6680
  • Mounting Facility Type and Quantity: 1 THREADED STUD(S)
  • Width: 2.281 INCHES NOMINAL IN
  • Contact Quantity: 2
  • Contact Type: THREADED STUD
  • Color: WHITE MARKER OVERALL
  • Illumination Color Generation Method: NATURAL LIGHT
  • Length: 2.313 INCHES NOMINAL IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Indicator,liquid Quantity, cataloged under National Stock Number 6680-00-981-7818, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Stewart-Warner Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN6680-00-981-7818
Primary Part Number304-B
Item NameIndicator,liquid Quantity
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerStewart-Warner Corporation
StatusACTIVE
Mounting Facility Type and Quantity1 THREADED STUD(S)
Width2.281 INCHES NOMINAL IN
Contact Quantity2
Contact TypeTHREADED STUD
ColorWHITE MARKER OVERALL
Illumination Color Generation MethodNATURAL LIGHT
Length2.313 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
4310-00-035-7520304B INTERCHANGEABLE
Reed Strip,valve
Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
3110-00-156-519910250059-2 INTERCHANGEABLE
Bearing,ball,annular
Us Army Aviation and Missile Command
5905-00-189-7998813186-76 INTERCHANGEABLE
Resistor,fixed,composition
Lockheed Martin Corporation Div Rms - Mitchel Field
5935-00-192-4787GB542 INTERCHANGEABLE
Plug,telephone
Kellogg Company Div Kellogg's Food Away From Home
5355-00-346-3638MS91528-3O4B INTERCHANGEABLE
Knob
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5905-00-502-8204 INTERCHANGEABLE
Resistor Set,matched
6130-00-583-9090 INTERCHANGEABLE
Rectifier,metallic
5905-00-666-0781 INTERCHANGEABLE
Resistor,thermal
Cross-Reference Index
Part NumberManufacturer
304-B Stewart-Warner Corporation (USA)
Related Parts
4310-00-035-7520INTERCHANGEABLE
REED STRIP,VALVE
304B
3110-00-156-5199INTERCHANGEABLE
BEARING,BALL,ANNULAR
10250059-2
5905-00-189-7998INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
813186-76
5935-00-192-4787INTERCHANGEABLE
PLUG,TELEPHONE
GB542
5355-00-346-3638INTERCHANGEABLE
KNOB
MS91528-3O4B
5905-00-502-8204INTERCHANGEABLE
RESISTOR SET,MATCHED
6130-00-583-9090INTERCHANGEABLE
RECTIFIER,METALLIC
5905-00-666-0781INTERCHANGEABLE
RESISTOR,THERMAL

Frequently Asked Questions

What is NSN 6680-00-981-7818?

NSN 6680-00-981-7818 is a Indicator,liquid Quantity, manufactured by Stewart-Warner Corporation, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-981-7818?

NSN 6680-00-981-7818 has 1 cross-referenced part number: 304-B (Stewart-Warner Corporation).

What NSN replaces 6680-00-981-7818?

There are 8 known substitutes for 6680-00-981-7818: 4310-00-035-7520, 3110-00-156-5199, 5905-00-189-7998 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 304-B?

Key specifications for 304-B: Mounting Facility Type and Quantity: 1 THREADED STUD(S); Width: 2.281 INCHES NOMINAL IN; Contact Quantity: 2; Contact Type: THREADED STUD. 7 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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