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PartsTable / COMPONENT / 8478A20H01
8478A20H01 ✓ 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 SERVOMOTOR,TACHOMET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE OVERALL, hole_diameter: 0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 3.625 INCHES NOMINAL IN, overall_length: 3.625 INCHES NOMINAL IN, style_designator: NON-CIRCULAR, aperture_diameter: 2.500 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 1075-01-224-9776, 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
8478A20H01
NSN: 1075-01-224-9776
FSC: 1075
CAGE: 31442 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
materialPAPER AND GLUE OVERALL
hole_diameter0.438 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width3.625 INCHES NOMINAL IN
overall_length3.625 INCHES NOMINAL IN
style_designatorNON-CIRCULAR
aperture_diameter2.500 INCHES NOMINAL IN
bolt_hole_quantity4
outside_corner_radius0.500 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,NO. +3313B MIL SPEC ALL MATERIAL RESPONSES OVERALL
outside_edge_to_bolt_hole_center_distance_along_width0.500 INCHES NOMINAL IN
NSN1075-01-224-9776
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SERVOMOTOR,TACHOMET TITLE COMPONENT PN 8478A20H01 MFR SERVOMOTOR,TACHOMET
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
00737 SH41 ST164Interchangeable
interchangeable cross-reference
interchangeable
H52AInterchangeable
interchangeable cross-reference
interchangeable
5330008327848Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8478A20H01?
8478A20H01 is a SERVOMOTOR,TACHOMET.
What parts can replace 8478A20H01?
There are 3 known substitutes for 8478A20H01: 00737 SH41 ST164, H52A, 5330008327848. Substitute compatibility should be verified for your specific system.
What is the NSN for 8478A20H01?
8478A20H01 is cataloged in the Federal Logistics Information System (FLIS) under NSN 1075-01-224-9776. 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