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PartsTable / COMPONENT / 505-6405402-AY85
505-6405402-AY85 ✓ 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

ACTUATOR,HYDRAULIC-PNEUMATIC,ROT. Key specifications include end_item_identification: ACTUATOR,ROTARY,HYDRAULIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-450-7709, 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
505-6405402-AY85
NSN: 4810-01-450-7709
FSC: 4810
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_item_identificationACTUATOR,ROTARY,HYDRAULIC
NSN4810-01-450-7709
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 505-6405402-AY85 · 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
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONACTUATOR,ROTARY,HYDRAULIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
1985-37715Interchangeable
interchangeable cross-reference
interchangeable
1977-39905 ITEM 2Interchangeable
interchangeable cross-reference
interchangeable
1980-38820-2Interchangeable
interchangeable cross-reference
interchangeable
1980-38820-3Interchangeable
interchangeable cross-reference
interchangeable
1977-39905 ITEM 3Interchangeable
interchangeable cross-reference
interchangeable
1985-37715-TDInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 505-6405402-AY85?
505-6405402-AY85 is a ACTUATOR,HYDRAULIC-PNEUMATIC,ROT.
What parts can replace 505-6405402-AY85?
There are 6 known substitutes for 505-6405402-AY85: 1985-37715, 1977-39905 ITEM 2, 1980-38820-2 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 505-6405402-AY85?
505-6405402-AY85 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4810-01-450-7709. 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