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667J681PC30 — Technical Data Sheet

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NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

GLASS,LIQUID SIGHT INDICATOR,FLA. Key specifications include GASKET: NOT INCLUDED, DESIGN TYPE: PLAIN, MICA SHIELD: NOT PROVIDED, OVERALL DIAMETER: 1.688 INCHES NOMINAL IN, OVERALL THICKNESS: 0.250 INCHES NOMINAL IN, PART NAME ASSIGNED BY CONTROLLING AGENCY: GLASSES, PORTLIGHT, CIRCULAR, HEAT TREATED TYPE A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 6680-00-526-5187, 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
667J681PC30
NSN: 6680-00-526-5187
FSC: 6680
CAGE: 90099 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS (USA)
SPECIFICATIONS
GASKETNOT INCLUDED
DESIGN TYPEPLAIN
MICA SHIELDNOT PROVIDED
OVERALL DIAMETER1.688 INCHES NOMINAL IN
OVERALL THICKNESS0.250 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGLASSES, PORTLIGHT, CIRCULAR, HEAT TREATED TYPE A
NSN6680-00-526-5187
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS GLASS,LIQUID SIGHT INDICATOR,FLA TITLE COMPONENT PN 667J681PC30 MFR NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS GLASS,LIQUID SIGHT IND
KEY FEATURES
•
OVERALL DIAMETER: 1.688 INCHES NOMINAL IN
•
MICA SHIELD: NOT PROVIDED
•
DESIGN TYPE: PLAIN
•
OVERALL THICKNESS: 0.250 INCHES NOMINAL IN
•
GASKET: NOT INCLUDED
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.688 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYGLASSES, PORTLIGHT, CIRCULAR, HEAT TREATED TYPE A
MICA SHIELDNOT PROVIDED
DESIGN TYPEPLAIN
OVERALL THICKNESS0.250 INCHES NOMINAL IN
GASKETNOT INCLUDED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
MILG2697TYPEAInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
347InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
88520InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
W5329769PC75InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D30391PC389AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
E5898SH2PC1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 667J681PC30?
667J681PC30 is a GLASS,LIQUID SIGHT INDICATOR,FLA manufactured by NORTHROP GRUMMAN SYSTEMS CORPORATION DIV MARINE SYSTEMS.
What parts can replace 667J681PC30?
There are 20 known substitutes for 667J681PC30: MILG2697TYPEA, 347, 88520 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 667J681PC30?
667J681PC30 is cataloged in the Federal Logistics Information System under NSN 6680-00-526-5187. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026