PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

898A-21STIndicator,sight,liquid

Superior Valve Co · NSN 6680-01-256-1036 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-256-1036 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-256-1036. Primary manufacturer part number: 898A-21ST.
Features
  • Indicator,sight,liquid — FSC 6680
  • Sight Diameter: 2.125 INCHES NOMINAL IN
  • Furnished Data: LIQUID LEVEL
  • Material: COPPER ALLOY
  • Style Designator: DOUBLE PORT W/CAPS
  • Maximum Working Pressure: 500.0 POUNDS PER SQUARE INCH (PSI) LBS
  • End Connection Type: UNABLE TO DECODE
  • Data Furnishing Method: CLEAR WINDOW
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-256-1036, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Superior Valve Co. Government technical data includes 7 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-01-256-1036
Primary Part Number898A-21ST
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerSuperior Valve Co
StatusACTIVE
Sight Diameter2.125 INCHES NOMINAL IN
Furnished DataLIQUID LEVEL
MaterialCOPPER ALLOY
Style DesignatorDOUBLE PORT W/CAPS
Maximum Working Pressure500.0 POUNDS PER SQUARE INCH (PSI) LBS
End Connection TypeUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-862-734122-1144-2A INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Avo Intl
5930-01-541-2195798C-10007 INTERCHANGEABLE
Switch,electronic
Meritor Specialty Products Llc
Cross-Reference Index
Part NumberManufacturer
1000912 Tld Ace Corp Div Tld Ace (USA)
898A-21ST PRIMARY Superior Valve Co (USA)
Related Parts
5905-00-862-7341INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
22-1144-2A
5930-01-541-2195INTERCHANGEABLE
SWITCH,ELECTRONIC
798C-10007

Frequently Asked Questions

What is NSN 6680-01-256-1036?

NSN 6680-01-256-1036 is a Indicator,sight,liquid, manufactured by Superior Valve Co, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-256-1036?

NSN 6680-01-256-1036 has 2 cross-referenced part numbers: 1000912 (Tld Ace Corp Div Tld Ace), 898A-21ST (Superior Valve Co).

What NSN replaces 6680-01-256-1036?

There are 2 known substitutes for 6680-01-256-1036: 5905-00-862-7341, 5930-01-541-2195. Verify interchangeability with system specifications before substitution.

What are the specifications of 898A-21ST?

Key specifications for 898A-21ST: Overall Height: 2.250 INCHES NOMINAL IN; Sight Diameter: 2.125 INCHES NOMINAL IN; Furnished Data: LIQUID LEVEL; Material: COPPER ALLOY. 9 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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