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US00198990 ✓ 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 REFLECTOR SECTION,ANTENNA is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, body_width: 0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN, bore_shape: STRAIGHT, body_height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN, body_length: 0.796 INCHES MAXIMUM IN, bore_diameter: 20.00 MILLIMETERS NOMINAL MM. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-693-0290, 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
US00198990
NSN: 5985-01-693-0290
FSC: 5985
CAGE: 67032 — GENERAL DYNAMICS MISSION SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
body_width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
body_height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
body_length0.796 INCHES MAXIMUM IN
bore_diameter20.00 MILLIMETERS NOMINAL MM
overall_width15.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
special_featuresWEAPON SYSTEM ESSENTIAL
style_designatorLOADING GROOVE, NON-SEPARABLE
features_providedHERMETICALLY SEALED AND MONOLITHIC AND POSITIVE OUTPUTS AND EDGE TRIGGERED
NSN5985-01-693-0290
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available REFLECTOR SECTION,ANTENNA TITLE COMPONENT PN US00198990 MFR REFLECTOR SECTION,ANTE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
SN5490NInterchangeable
interchangeable cross-reference
interchangeable
4851-44Interchangeable
interchangeable cross-reference
interchangeable
SN5490JAInterchangeable
interchangeable cross-reference
interchangeable
954171Interchangeable
interchangeable cross-reference
interchangeable
700768Interchangeable
interchangeable cross-reference
interchangeable
41304Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is US00198990?
US00198990 is a REFLECTOR SECTION,ANTENNA.
What parts can replace US00198990?
There are 11 known substitutes for US00198990: SN5490N, 4851-44, SN5490JA and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for US00198990?
US00198990 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5985-01-693-0290. 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: July 2026