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PartsTable / COMPONENT / 550426
550426 ✓ Verified by PartsTable
— · GATE VALVE
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: ALUMINUM OVERALL, surface_treatment: ANODIZE OVERALL, end_item_identification: 4110-01-534-7675 MOBILE INT COLL SYS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-075-1319, 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
550426
NSN: 4820-00-075-1319
FSC: 4820
CAGE: 11247 — LODESTONE CORP DIV OF FEDDERS CORP (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
surface_treatmentANODIZE OVERALL
end_item_identification4110-01-534-7675 MOBILE INT COLL SYS
NSN4820-00-075-1319
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 550426 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MATERIAL: IRON CAST SEAT
•
MOUNTING FACILITY: THREADED FASTENER
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALIRON CAST SEAT
MATERIALSTEEL STEM
MATERIALIRON CAST BODY
MOUNTING FACILITYTHREADED FASTENER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
453XInterchangeable
interchangeable cross-reference
interchangeable
550426Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 550426?
550426 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 550426?
There are 2 known substitutes for 550426: 453X, 550426. Substitute compatibility should be verified for your specific system.
What is the NSN for 550426?
550426 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-075-1319. 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