PartsTable
Technical Data Sheet
PartsTable / MRO / 78553
78553 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include material: ALUMINUM ALLOY, overall_width: 1.000 INCHES NOMINAL IN, overall_height: 0.250 INCHES NOMINAL IN, overall_length: 2.125 INCHES NOMINAL IN, fsc_application_data: TELETYPE AND FACS. EQUIP., supplementary_features: 2 THREADED MOUNTING HOLES 0.125 INCHES IN DIAMETER ON 1.937 INCHES MOUNTING CENTER IN.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-118-9951, 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
MRO→ MRO_GENERAL→ 78553
NSN: 2810-00-118-9951
FSC: 2810
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialALUMINUM ALLOY
overall_width1.000 INCHES NOMINAL IN
overall_height0.250 INCHES NOMINAL IN
overall_length2.125 INCHES NOMINAL IN
fsc_application_dataTELETYPE AND FACS. EQUIP.
supplementary_features2 THREADED MOUNTING HOLES 0.125 INCHES IN DIAMETER ON 1.937 INCHES MOUNTING CENTER IN
NSN2810-00-118-9951
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,NONWIRE WOUND, TITLE COMPONENT PN 78553 MFR RESISTOR,VARIABLE,NONW
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CONSISTS OF PART NUMBERS 28834,30517 ASSEMBLY,38337,4638 AND 98169; RUBBER AGE CONTROL PER SPEC PWA 354; PART NUMBER 28834 PROTRUDES 0.141 IN.; INCLUDES DECAL 392441 PER MS 9244-01 OR MS 9244-02 IN
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACFT ENG R1820
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCONSISTS OF PART NUMBERS 28834,30517 ASSEMBLY,38337,4638 AND 98169; RUBBER AGE CONTROL PER SPEC PWA 354; PART NUMBER 28834 PROTRUDES 0.141 IN.; INCLUDES DECAL 392441 PER MS 9244-01 OR MS 9244-02 IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
78553Interchangeable
interchangeable cross-reference
interchangeable
64617Interchangeable
interchangeable cross-reference
interchangeable
21237Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 78553?
78553 is a RESISTOR,VARIABLE,NONWIRE WOUND,. It is classified as a MRO (MRO_GENERAL).
What parts can replace 78553?
There are 3 known substitutes for 78553: 78553, 64617, 21237. Substitute compatibility should be verified for your specific system.
What is the NSN for 78553?
78553 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2810-00-118-9951. 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