PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-15901Indicator,sight,liquid

Mueller Brass Co. · NSN 6680-00-951-7513 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-951-7513 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-951-7513. Primary manufacturer part number: A-15901.
Features
  • Indicator,sight,liquid — FSC 6680
  • Thread Direction: UNABLE TO DECODE
  • Tube Outside Diameter for Which Designed: UNABLE TO DECODE
  • Seat Angle in Deg: UNABLE TO DECODE
  • Thread Series Designator: UNABLE TO DECODE
  • Furnished Data: ACTIVE INGREDIENT PRESENCE
  • Media for Which Designed: REFRIGERANT, FLUOROCARBON
  • Material: COPPER ALLOY
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-951-7513, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Mueller Brass Co.. Government technical data includes 14 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-951-7513
Primary Part NumberA-15901
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
Thread DirectionUNABLE TO DECODE
Tube Outside Diameter for Which DesignedUNABLE TO DECODE
Seat Angle in DegUNABLE TO DECODE
Thread Series DesignatorUNABLE TO DECODE
Furnished DataACTIVE INGREDIENT PRESENCE
Media for Which DesignedREFRIGERANT, FLUOROCARBON
MaterialCOPPER ALLOY
Nominal Thread SizeUNABLE TO DECODE
Data Furnishing MethodCLEAR WINDOW
End Connection TypeUNABLE TO DECODE
Style DesignatorVERTICAL SHIELDED, DOUBLE PORT
Width Across Flats0.375 INCHES NOMINAL IN
Thread ClassUNABLE TO DECODE
Sight Height0.438 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4210-00-211-636290800140 INTERCHANGEABLE
Nozzle,fire Equipment
Kidde-Fenwal, Llc
5330-01-286-5968800-140 INTERCHANGEABLE
Gasket
Lift-Tech Intl Inc Crane and Hoist Opns
9330-01-486-28581590100 INTERCHANGEABLE
Plastic Strip,pressure Sensitive
Labconco Corp
Cross-Reference Index
Part NumberManufacturer
800140 Aerodri Corp Keco Industries Inc Div (USA)
A-15901 PRIMARY Mueller Brass Co. (USA)
Related Parts
4210-00-211-6362INTERCHANGEABLE
NOZZLE,FIRE EQUIPMENT
90800140
5330-01-286-5968INTERCHANGEABLE
GASKET
800-140
9330-01-486-2858INTERCHANGEABLE
PLASTIC STRIP,PRESSURE SENSITIVE
1590100

Frequently Asked Questions

What is NSN 6680-00-951-7513?

NSN 6680-00-951-7513 is a Indicator,sight,liquid, manufactured by Mueller Brass Co., classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-951-7513?

NSN 6680-00-951-7513 has 2 cross-referenced part numbers: 800140 (Aerodri Corp Keco Industries Inc Div), A-15901 (Mueller Brass Co.).

What NSN replaces 6680-00-951-7513?

There are 3 known substitutes for 6680-00-951-7513: 4210-00-211-6362, 5330-01-286-5968, 9330-01-486-2858. Verify interchangeability with system specifications before substitution.

What are the specifications of A-15901?

Key specifications for A-15901: Thread Direction: UNABLE TO DECODE; Tube Outside Diameter for Which Designed: UNABLE TO DECODE; Seat Angle in Deg: UNABLE TO DECODE; Thread Series Designator: UNABLE TO DECODE. 15 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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