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PartsTable / COMPONENT / RYLB-51605
RYLB-51605 ✓ 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: CORK AND GLUE OVERALL, hole_diameter: 0.151 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, outside_diameter: 2.562 INCHES NOMINAL IN, bolt_circle_diameter: 2.135 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9786, 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
RYLB-51605
NSN: 4820-01-305-9786
FSC: 4820
CAGE: 05624 — GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
materialCORK AND GLUE OVERALL
hole_diameter0.151 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
outside_diameter2.562 INCHES NOMINAL IN
bolt_circle_diameter2.135 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-G-12803,+2117B MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN4820-01-305-9786
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: RYLB-51605 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
A5444Interchangeable
interchangeable cross-reference
interchangeable
376MBS1Interchangeable
interchangeable cross-reference
interchangeable
327982Interchangeable
interchangeable cross-reference
interchangeable
102058Interchangeable
interchangeable cross-reference
interchangeable
115-8198Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RYLB-51605?
RYLB-51605 is a VALVE,CHECK.
What parts can replace RYLB-51605?
There are 5 known substitutes for RYLB-51605: A5444, 376MBS1, 327982 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RYLB-51605?
RYLB-51605 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-305-9786. 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