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Technical Data Sheet
PartsTable / MRO / 51277A
51277A ✓ 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

The 51277A is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 55.00 MILLIMETERS NOMINAL MM, overall_width: 21.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5815-00-356-3479, 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→ 51277A
NSN: 5815-00-356-3479
FSC: 5815
CAGE: 82423 — KLEINSCHMIDT INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter55.00 MILLIMETERS NOMINAL MM
overall_width21.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter100.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN5815-00-356-3479
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available 51277A TITLE COMPONENT PN 51277A MFR 51277A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
211SQ6A7Interchangeable
interchangeable cross-reference
interchangeable
F40211Interchangeable
interchangeable cross-reference
interchangeable
E1ADDN7025AInterchangeable
interchangeable cross-reference
interchangeable
B86R0006Interchangeable
interchangeable cross-reference
interchangeable
5-1277Interchangeable
interchangeable cross-reference
interchangeable
NH1010750-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51277A?
51277A is a 51277A. It is classified as a MRO (MRO_GENERAL).
What parts can replace 51277A?
There are 8 known substitutes for 51277A: 211SQ6A7, F40211, E1ADDN7025A and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 51277A?
51277A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5815-00-356-3479. 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