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Technical Data Sheet
509891 ✓ 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 MICROCIRCUIT,DIGITAL is a the manufacturer industrial component. Key specifications include diameter: 0.125 INCHES MINIMUM IN, material: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL, overall_length: 5.375 INCHES NOMINAL IN, connection_type: THREADED INTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, special_features: TYPE OF ELECTRODE - PO2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 9320-01-237-1157, 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
509891
NSN: 9320-01-237-1157
FSC: 9320
CAGE: 19428 — EMPIRE ABRASIVE EQUIPMENT CO LP (USA)
SPECIFICATIONS
diameter0.125 INCHES MINIMUM IN
materialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
overall_length5.375 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
special_featuresTYPE OF ELECTRODE - PO2
style_designatorCOILED
expanded_diameter0.131 INCHES MINIMUM AND 0.138 INCHES MAXIMUM IN
features_providedHERMETICALLY SEALED CASE
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.500 INCHES SECOND END IN
contact_adjustabilityACTUATION POINT NOT ADJUSTABLE
NSN9320-01-237-1157
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MICROCIRCUIT,DIGITAL TITLE COMPONENT PN 509891 MFR MICROCIRCUIT,DIGITAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
11098Interchangeable
interchangeable cross-reference
interchangeable
311098-999Interchangeable
interchangeable cross-reference
interchangeable
311098-110-999Interchangeable
interchangeable cross-reference
interchangeable
125-0500MDPInterchangeable
interchangeable cross-reference
interchangeable
21128-00345Interchangeable
interchangeable cross-reference
interchangeable
MS51923-288Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 509891?
509891 is a MICROCIRCUIT,DIGITAL.
What parts can replace 509891?
There are 11 known substitutes for 509891: 11098, 311098-999, 311098-110-999 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 509891?
509891 is cataloged in the Federal Logistics Information System (FLIS) under NSN 9320-01-237-1157. This indicates validated use in U.S. government and defense supply chains.
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