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Technical Data Sheet
PartsTable / COMPONENT / 637409C91
637409C91 ✓ 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 PUMP,TRANSMISSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, outside_diameter: 41.300 INCHES MINIMUM AND 41.305 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 41.030 INCHES MINIMUM AND 41.059 INCHES MAXIMUM IN, fsc_application_data: ENGINE,JET,ACFT, cross-sectional_thickness: 0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM 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 4320-00-071-2123, 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
637409C91
NSN: 4320-00-071-2123
FSC: 4320
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
outside_diameter41.300 INCHES MINIMUM AND 41.305 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter41.030 INCHES MINIMUM AND 41.059 INCHES MAXIMUM IN
fsc_application_dataENGINE,JET,ACFT
cross-sectional_thickness0.124 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
cross-sectional_shape_styleMETAL
material_document_and_classificationAMS 5570 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5576 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN4320-00-071-2123
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PUMP,TRANSMISSION TITLE COMPONENT PN 637409C91 MFR PUMP,TRANSMISSION
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
132062Interchangeable
interchangeable cross-reference
interchangeable
3071-47Interchangeable
interchangeable cross-reference
interchangeable
051-PG001-250Interchangeable
interchangeable cross-reference
interchangeable
41300-5-3Interchangeable
interchangeable cross-reference
interchangeable
575150Interchangeable
interchangeable cross-reference
interchangeable
AS318914Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 637409C91?
637409C91 is a PUMP,TRANSMISSION.
What parts can replace 637409C91?
There are 11 known substitutes for 637409C91: 132062, 3071-47, 051-PG001-250 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 637409C91?
637409C91 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-071-2123. 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