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Technical Data Sheet
PartsTable / COMPONENT / FC12103
FC12103 ✓ Verified by PartsTable
— · 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

The CAP,FILLER OPENING is a the manufacturer industrial component. Key specifications include color: OLIVE DRAB, material: ALUMINUM ALLOY OVERALL, thread_class: 2A A, thread_length: 0.300 INCHES NOMINAL IN, overall_height: 0.935 INCHES NOMINAL IN, thread_diameter: 1.625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2590-00-223-5633, 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
FC12103
NSN: 2590-00-223-5633
FSC: 2590
CAGE: 63477 — FEDERAL MOGUL CORP SUB WAGNER BRAKE MOOG AUTOMOTIVE DIV (USA)
SPECIFICATIONS
colorOLIVE DRAB
materialALUMINUM ALLOY OVERALL
thread_class2A A
thread_length0.300 INCHES NOMINAL IN
overall_height0.935 INCHES NOMINAL IN
thread_diameter1.625 INCHES NOMINAL IN
thread_quantity18 PER INCH
special_featuresGRUMMAN A-10 AIRCRAFT
style_designatorTHREADED TYPE EXTERNAL
features_providedBREATHER HOLE
surface_treatmentANODIZE OVERALL
accommodation_typeHEXAGON END GRIPPING
NSN2590-00-223-5633
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CAP,FILLER OPENING TITLE COMPONENT PN FC12103 MFR CAP,FILLER OPENING
KEY FEATURES
•
THREAD CLASS: 2A A
•
SYSTEM FOR WHICH DESIGNED: PRESSURIZED
•
PRESSURE RELIEF METHOD: AUTOMATIC OR MANUAL
•
ACCOMMODATION TYPE: HEXAGON END GRIPPING
•
STYLE DESIGNATOR: THREADED TYPE EXTERNAL
•
THREAD SERIES DESIGNATOR: UNS
•
FEATURES PROVIDED: BREATHER HOLE
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A A
SYSTEM FOR WHICH DESIGNEDPRESSURIZED
OVERALL HEIGHT1.470 INCHES NOMINAL IN
PRESSURE RELIEF METHODAUTOMATIC OR MANUAL
ACCOMMODATION TYPEHEXAGON END GRIPPING
STYLE DESIGNATORTHREADED TYPE EXTERNAL
THREAD SERIES DESIGNATORUNS
FEATURES PROVIDEDBREATHER HOLE
MATERIALPLASTIC OVERALL
THREAD QUANTITY18 PER INCH
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
AS954 TY1CL1STBInterchangeable
interchangeable cross-reference
interchangeable
W-944Interchangeable
interchangeable cross-reference
interchangeable
AS954Interchangeable
interchangeable cross-reference
interchangeable
6018Interchangeable
interchangeable cross-reference
interchangeable
4981083Interchangeable
interchangeable cross-reference
interchangeable
34601Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FC12103?
FC12103 is a CAP,FILLER OPENING.
What parts can replace FC12103?
There are 13 known substitutes for FC12103: AS954 TY1CL1STB, W-944, AS954 and 10 more. Substitute compatibility should be verified for your specific system.
Is FC12103 still available?
FC12103 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026