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Technical Data Sheet
PartsTable / MRO / 637439
637439 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
CTO = bare chassis: no CPU, no RAM, no disks — configure everything SFF chassis = 2.5" bays | LFF chassis = 3.5" bays
Rail kit included? Usually sold separately.
PRODUCT OVERVIEW

The 637439 is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, aperture_width: 4.188 INCHES NOMINAL IN, aperture_length: 4.531 INCHES NOMINAL IN, special_features: BOLT HOLE DIA 0.281 IN NOM,OVERALL WIDTH 5.937 IN NOM IN, style_designator: PEAR, bearing_surface_width: 0.344 INCHES NOMINAL 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 7045-00-255-2879, 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→ 637439
NSN: 7045-00-255-2879
FSC: 7045
CAGE: 1PQF4 — CAE USA INC. (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
aperture_width4.188 INCHES NOMINAL IN
aperture_length4.531 INCHES NOMINAL IN
special_featuresBOLT HOLE DIA 0.281 IN NOM,OVERALL WIDTH 5.937 IN NOM IN
style_designatorPEAR
bolt_hole_quantity7
bearing_surface_width0.344 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
largest_bolt_hole_diameter0.406 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
smallest_bolt_hole_diameter0.281 INCHES NOMINAL IN
material_document_and_classificationMIL-G-12803,NO. +3313-B MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN7045-00-255-2879
COMPONENT DIAGRAM
OEM BAY 0 BAY 1 BAY 2 BAY 3 BAY 4 BAY 5 BAY 6 BAY 7 FAN PSU 1 800W PSU 2 800W iLO / BMC | 4x1GbE | VGA | USB | PCIe RISERS 19" RACK WIDTH | 2U HEIGHT (88mm) OEM 2U RACK SERVER | Gen10 | 8x SFF BAYS | REDUNDANT PSU CTO = bare chassis (no CPU/RAM/disk) | SFF = 2.5" bays | LFF = 3.5" bays TITLE 2U SERVER PN 637439 MFR OEM Gen10 RACK SERVER
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONCOMPUTER
END ITEM IDENTIFICATIONCOMPUTER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
5250E9201Interchangeable
interchangeable cross-reference
interchangeable
637439Interchangeable
interchangeable cross-reference
interchangeable
K4269Interchangeable
interchangeable cross-reference
interchangeable
190-0209-00Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 637439?
637439 is a 637439. It is classified as a MRO (MRO_GENERAL).
What parts can replace 637439?
There are 4 known substitutes for 637439: 5250E9201, 637439, K4269 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 637439?
637439 is cataloged in the Federal Logistics Information System (FLIS) under NSN 7045-00-255-2879. 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