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PartsTable / COMPONENT / 900821
900821 ✓ 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

OSCILLATOR,NONCRYSTAL CONTROLLED. Key specifications include material: COPPER ALLOY BODY, overall_width: 89.0 INCHES NOMINAL IN, inclosure_type: ENCASED, overall_height: 135.0 INCHES NOMINAL IN, overall_length: 81.0 INCHES NOMINAL IN, connection_type: BUTT WELD TUBE ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-00-770-4250, 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
900821
NSN: 1660-00-770-4250
FSC: 1660
CAGE: 04577 — MISSION SYSTEMS ORCHARD PARK INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
overall_width89.0 INCHES NOMINAL IN
inclosure_typeENCASED
overall_height135.0 INCHES NOMINAL IN
overall_length81.0 INCHES NOMINAL IN
connection_typeBUTT WELD TUBE ALL ENDS
pressure_ratingERR-060
special_featuresBUCKET ROTATION 180 DEG, DIGGING DEPTH: 9'4"
style_designatorSTRAIGHT THRU
basic_shape_styleRECTANGULAR OR SQUARE
average_life_rating75000.0
installation_designPANEL
NSN1660-00-770-4250
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available OSCILLATOR,NONCRYSTAL CONTROLLED TITLE COMPONENT PN 900821 MFR OSCILLATOR,NONCRYSTAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
A98-21439Interchangeable
interchangeable cross-reference
interchangeable
900821Interchangeable
interchangeable cross-reference
interchangeable
18518Interchangeable
interchangeable cross-reference
interchangeable
8148650Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 900821?
900821 is a OSCILLATOR,NONCRYSTAL CONTROLLED.
What parts can replace 900821?
There are 4 known substitutes for 900821: A98-21439, 900821, 18518 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 900821?
900821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1660-00-770-4250. 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