PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

528 3-8Indicator,sight,liquid

Lunkenheimer Co · NSN 6680-00-580-7813 · FSC 6680 · No Item Name Available
Verified by PartsTable
NSN 6680-00-580-7813 — this item is cataloged by the U.S. Government under National Stock Number 6680-00-580-7813. Primary manufacturer part number: 528 3-8.
Features
  • Indicator,sight,liquid — FSC 6680
  • Nominal Thread Size: UNABLE TO DECODE
  • End Connection Type: UNABLE TO DECODE
  • Features Provided: PORT SEAL CAP
  • Style Designator: ANGLE PATTERN, SHIELDED FRONT OPENING
  • Material: COPPER ALLOY
  • Thread Quantity Per Inch: UNABLE TO DECODE
  • Reference Number Differentiating Characteristics: MATT,SFTT,ASNW,ABKW,ADAV,ABHP,THSP
Applications
  • Applications requiring Copper Alloy construction
General Description

The Indicator,sight,liquid, cataloged under National Stock Number 6680-00-580-7813, is classified within Federal Supply Class 6680 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Lunkenheimer Co. Government technical data includes 13 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6680-00-580-7813
Primary Part Number528 3-8
Item NameIndicator,sight,liquid
FSC / FSG6680 / 66 — No Item Name Available
ManufacturerLunkenheimer Co
StatusACTIVE
Nominal Thread SizeUNABLE TO DECODE
End Connection TypeUNABLE TO DECODE
Features ProvidedPORT SEAL CAP
Style DesignatorANGLE PATTERN, SHIELDED FRONT OPENING
MaterialCOPPER ALLOY
Thread Quantity Per InchUNABLE TO DECODE
Reference Number Differentiating CharacteristicsMATT,SFTT,ASNW,ABKW,ADAV,ABHP,THSP
Thread Series DesignatorUNABLE TO DECODE
Surface TreatmentCADMIUM
Media for Which DesignedOIL
Sight Height2.312 INCHES NOMINAL IN
Overall Diameter0.906 INCHES NOMINAL IN
Thread DirectionUNABLE TO DECODE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5998-00-003-913952838 INTERCHANGEABLE
Circuit Card Assembly
Cae Inc
4730-00-196-1983B687R-48B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
5307-00-219-7019SM-B-157370 INTERCHANGEABLE
Stud,plain
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5210-00-233-5474599-9647-15 INTERCHANGEABLE
Blade,thickness Gage
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
6680-00-585-0992G155-3 INTERCHANGEABLE
Indicator,sight,liquid
Ldi Industries, Inc. Dba Ldi Industries Inc
5950-00-647-8570A52838 INTERCHANGEABLE
Transformer,radio Frequency
L3harris Technologies, Inc Div Space & Airborne Systems
5905-00-918-226952838 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
Cross-Reference Index
Part NumberManufacturer
528 3-8 Lunkenheimer Co (USA)
Related Parts
5998-00-003-9139INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
52838
4730-00-196-1983INTERCHANGEABLE
NIPPLE,PIPE
B687R-48B
5307-00-219-7019INTERCHANGEABLE
STUD,PLAIN
SM-B-157370
5210-00-233-5474INTERCHANGEABLE
BLADE,THICKNESS GAGE
599-9647-15
6680-00-585-0992INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
G155-3
5950-00-647-8570INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
A52838
5905-00-918-2269INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
52838

Frequently Asked Questions

What is NSN 6680-00-580-7813?

NSN 6680-00-580-7813 is a Indicator,sight,liquid, manufactured by Lunkenheimer Co, classified under FSC 6680 (No Item Name Available). Status: active.

What are the part numbers for NSN 6680-00-580-7813?

NSN 6680-00-580-7813 has 1 cross-referenced part number: 528 3-8 (Lunkenheimer Co).

What NSN replaces 6680-00-580-7813?

There are 7 known substitutes for 6680-00-580-7813: 5998-00-003-9139, 4730-00-196-1983, 5307-00-219-7019 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 528 3-8?

Key specifications for 528 3-8: Overall Height: 4.328 INCHES NOMINAL IN; Nominal Thread Size: UNABLE TO DECODE; End Connection Type: UNABLE TO DECODE; Features Provided: PORT SEAL CAP. 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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