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PartsTable / COMPONENT / M05557
M05557 ✓ 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

SEAL ASSEMBLY,SHAFT,SPRING LOADE. Key specifications include general_characteristics_item_description: CARBON FACE; CAST IRON SEAT; RUBBER SYNTHETIC /BUNA N PARTS; SPRING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-920-0254, 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
M05557
NSN: 4320-00-920-0254
FSC: 4320
CAGE: 71724 — JOHN CRANE, INC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionCARBON FACE; CAST IRON SEAT; RUBBER SYNTHETIC /BUNA N PARTS; SPRING
NSN4320-00-920-0254
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SEAL ASSEMBLY,SHAFT,SPRING LOADE TITLE COMPONENT PN M05557 MFR SEAL ASSEMBLY,SHAFT,SP
KEY FEATURES
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: CARBON FACE; CAST IRON SEAT; RUBBER SYNTHETIC /BUNA N PARTS; SPRING
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONCARBON FACE; CAST IRON SEAT; RUBBER SYNTHETIC /BUNA N PARTS; SPRING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
H33L38Interchangeable
interchangeable cross-reference
interchangeable
499-050-021Interchangeable
interchangeable cross-reference
interchangeable
1828Interchangeable
interchangeable cross-reference
interchangeable
CFSP-19557Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M05557?
M05557 is a SEAL ASSEMBLY,SHAFT,SPRING LOADE.
What parts can replace M05557?
There are 4 known substitutes for M05557: H33L38, 499-050-021, 1828 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M05557?
M05557 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-920-0254. 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