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512-6404652-AY93 — PISTON,LINEAR ACTUATING CYLINDER

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

512-6404652-AY93: PISTON,LINEAR ACTUATING CYLINDER.

PISTON,LINEAR ACTUATING CYLINDER. Key specifications include end_item_identification: SEAWOLF CLASS SUBMARINE SSN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-446-5079, 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
512-6404652-AY93
NSN: 4820-01-446-5079
FSC: 4820 — Valves, Nonpowered
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
special_featuresCROSS-CONNECT HYDRAULIC VALVE OUTBOARD OPERATOR ASSY.;PART OF AIR INDUCTION AND DIESEL EXHAUST VALVES OPERATING GEAR & GAGGING GEAR ASSY
end_item_identificationSEAWOLF CLASS SUBMARINE SSN
NSN4820-01-446-5079
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 512-6404652-AY93 · 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
SPECIAL FEATURESCROSS-CONNECT HYDRAULIC VALVE OUTBOARD OPERATOR ASSY.;PART OF AIR INDUCTION AND DIESEL EXHAUST VALVES OPERATING GEAR & GAGGING GEAR ASSY
END ITEM IDENTIFICATIONSEAWOLF CLASS SUBMARINE SSN
SUBSTITUTES & CROSS-REFERENCES 3
6404652Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
DF6503-173Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
DF6503-173 ASSY 93Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 512-6404652-AY93?
512-6404652-AY93 is a PISTON,LINEAR ACTUATING CYLINDER.
What parts can replace 512-6404652-AY93?
There are 3 known substitutes for 512-6404652-AY93: 6404652, DF6503-173, DF6503-173 ASSY 93. Substitute compatibility should be verified for your specific system.
What is the NSN for 512-6404652-AY93?
512-6404652-AY93 is cataloged in the U.S. Government catalog under NSN 4820-01-446-5079. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.