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Technical Data Sheet

1661C10 — Technical Data Sheet

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NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The INDICATOR,SIGHT,LIQUID is a NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS industrial component. Key specifications include MATERIAL: STEEL, FURNISHED DATA: LIQUID FLOW, OVERALL HEIGHT: 9.380 INCHES NOMINAL IN, SIGHT DIAMETER: 3.188 INCHES NOMINAL IN, STYLE DESIGNATOR: DOUBLE PORT FLANGED, BOLT HOLE DIAMETER: UNABLE TO DECODE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-01-121-0545, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1661C10
NSN: 6680-01-121-0545
FSC: 6680
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
MATERIALSTEEL
FURNISHED DATALIQUID FLOW
OVERALL HEIGHT9.380 INCHES NOMINAL IN
SIGHT DIAMETER3.188 INCHES NOMINAL IN
STYLE DESIGNATORDOUBLE PORT FLANGED
BOLT HOLE DIAMETERUNABLE TO DECODE
BOLT HOLE QUANTITYUNABLE TO DECODE
END CONNECTION TYPEUNABLE TO DECODE
MAXIMUM TEMP RATING212.0 FAHRENHEIT DEGF
DATA FURNISHING METHODCLEAR WINDOW AND FLAPPER
MAXIMUM WORKING PRESSURE216.0 POUNDS PER SQUARE INCH (PSI) LBS
MEDIA FOR WHICH DESIGNEDOIL
NSN6680-01-121-0545
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS INDICATOR,SIGHT,LIQUID TITLE COMPONENT PN 1661C10 MFR NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS INDICATOR,SIGHT,LIQUID
KEY FEATURES
MEDIA FOR WHICH DESIGNED: OIL
NOMINAL PIPE SIZE FOR WHICH DESIGNED: UNABLE TO DECODE
SIGHT DIAMETER: 3.188 INCHES NOMINAL IN
END CONNECTION TYPE: UNABLE TO DECODE
MAXIMUM WORKING PRESSURE: 216.0 POUNDS PER SQUARE INCH (PSI) LBS
FURNISHED DATA: LIQUID FLOW
MAXIMUM TEMP RATING: 212.0 FAHRENHEIT DEGF
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDOIL
NOMINAL PIPE SIZE FOR WHICH DESIGNEDUNABLE TO DECODE
SIGHT DIAMETER3.188 INCHES NOMINAL IN
END CONNECTION TYPEUNABLE TO DECODE
OVERALL HEIGHT9.380 INCHES NOMINAL IN
MAXIMUM WORKING PRESSURE216.0 POUNDS PER SQUARE INCH (PSI) LBS
FURNISHED DATALIQUID FLOW
MAXIMUM TEMP RATING212.0 FAHRENHEIT DEGF
MATERIALSTEEL
BOLT HOLE DIAMETERUNABLE TO DECODE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
T401MInterchangeable
interchangeable cross-reference
interchangeable
C18.1Interchangeable
interchangeable cross-reference
interchangeable
E401Interchangeable
interchangeable cross-reference
interchangeable
20310Interchangeable
interchangeable cross-reference
interchangeable
910Interchangeable
interchangeable cross-reference
interchangeable
A52491-69Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1661C10?
1661C10 is a INDICATOR,SIGHT,LIQUID manufactured by NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS.
What parts can replace 1661C10?
There are 24 known substitutes for 1661C10: T401M, C18.1, E401 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1661C10?
1661C10 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6680-01-121-0545. This indicates validated use in U.S. government and defense supply chains.
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