PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

749-008Indicator,sight,liquid

Clark-Reliance Llc · NSN 6680-01-128-4684 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-01-128-4684 — this item is cataloged by the U.S. Government under National Stock Number 6680-01-128-4684. Primary manufacturer part number: 749-008.
Features
  • Indicator,sight,liquid — FSC 6680
  • Distance Between Mounting Facility Centers: 8.000 INCHES NOMINAL IN
  • End Connection Type: UNABLE TO DECODE
  • Nominal Thread Size: UNABLE TO DECODE
  • Thread Quantity Per Inch: UNABLE TO DECODE
  • Material: COPPER ALLOY
  • Furnished Data: LIQUID LEVEL
  • Data Furnishing Method: CLEAR WINDOW
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-01-128-4684, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Clark-Reliance Llc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN6680-01-128-4684
Primary Part Number749-008
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerClark-Reliance Llc
StatusACTIVE
Distance Between Mounting Facility Centers8.000 INCHES NOMINAL IN
End Connection TypeUNABLE TO DECODE
Nominal Thread SizeUNABLE TO DECODE
Thread Quantity Per InchUNABLE TO DECODE
MaterialCOPPER ALLOY
Furnished DataLIQUID LEVEL
Data Furnishing MethodCLEAR WINDOW
Thread Series DesignatorUNABLE TO DECODE
Features ProvidedDRAIN COCK
Style DesignatorGAGE VALVE
Sight Diameter0.625 INCHES NOMINAL IN
Media for Which DesignedGAS, LIQUEFIED AND OIL AND STEAM AND WATER
Maximum Working Pressure100.0 POUNDS PER SQUARE INCH (PSI) LBS
Nominal Pipe Size for Which DesignedUNABLE TO DECODE
Thread DirectionUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-063-0896 INTERCHANGEABLE
Multimeter
5905-00-072-85312324954 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-100-0683749 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
3810-00-410-0109707049 INTERCHANGEABLE
Chain,special
Seats Inc Div Seats Incorporated
4730-00-595-0083 INTERCHANGEABLE
Coupling Half,quick Disconnect
2990-00-778-00313866266 INTERCHANGEABLE
Muffler,exhaust
General Motors Llc Dba General Motors Llc
5905-00-869-20092325246 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-00-901-9074 INTERCHANGEABLE
Screw,top,hydrant
6145-00-951-1199749 INTERCHANGEABLE
Cable,special Purpose,electrical
Birnbach Co Inc
5330-00-961-7033 INTERCHANGEABLE
Seal Kit
Cross-Reference Index
Part NumberManufacturer
749 Clark-Reliance Llc Dba Jacoby-Tarbox (USA)
749-008 PRIMARY Clark-Reliance Llc (USA)
749-008 Clark-Reliance Llc Dba Jacoby-Tarbox (USA)
Related Parts
6625-00-063-0896INTERCHANGEABLE
MULTIMETER
5905-00-072-8531INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2324954
3110-00-100-0683INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
749
3810-00-410-0109INTERCHANGEABLE
CHAIN,SPECIAL
707049
4730-00-595-0083INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
2990-00-778-0031INTERCHANGEABLE
MUFFLER,EXHAUST
3866266
5905-00-869-2009INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
2325246
5305-00-901-9074INTERCHANGEABLE
SCREW,TOP,HYDRANT
6145-00-951-1199INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
749
5330-00-961-7033INTERCHANGEABLE
SEAL KIT
6680-01-196-7642INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
D749-033
5330-01-240-8040INTERCHANGEABLE
GASKET
749

Frequently Asked Questions

What is NSN 6680-01-128-4684?

NSN 6680-01-128-4684 is a Indicator,sight,liquid, manufactured by Clark-Reliance Llc, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-01-128-4684?

NSN 6680-01-128-4684 has 3 cross-referenced part numbers: 749 (Clark-Reliance Llc Dba Jacoby-Tarbox), 749-008 (Clark-Reliance Llc), 749-008 (Clark-Reliance Llc Dba Jacoby-Tarbox).

What NSN replaces 6680-01-128-4684?

There are 12 known substitutes for 6680-01-128-4684: 6625-00-063-0896, 5905-00-072-8531, 3110-00-100-0683 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 749-008?

Key specifications for 749-008: Distance Between Mounting Facility Centers: 8.000 INCHES NOMINAL IN; End Connection Type: UNABLE TO DECODE; Nominal Thread Size: UNABLE TO DECODE; Thread Quantity Per Inch: 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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