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8557-027-065 — STEM,FLUID VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

8557-027-065: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410, seat_angle: 45.0 DEGREES NOMINAL, valve_size: 10.000 INCHES IN, overall_height: 7.120 INCHES NOMINAL IN, pressure_class: ERR-060, special_features: NEXT HIGHER ASSY VALVE,GATE. This part is cataloged in the U.S.

Government catalog under NSN 4810-01-419-2659, 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
8557-027-065
NSN: 4810-01-419-2659
FSC: 4810 — Valves, Powered
CAGE: 57574 — VELAN VALVE CORP. (USA)
SPECIFICATIONS
materialSTEEL COMP 410
seat_angle45.0 DEGREES NOMINAL
valve_size10.000 INCHES IN
overall_height7.120 INCHES NOMINAL IN
pressure_classERR-060
special_featuresNEXT HIGHER ASSY VALVE,GATE
style_designatorSOLID WEDGE
valve_operation_methodMANUAL
end_item_identificationW/S NIMITZ CLASS CVN
media_for_which_designedSTEAM
inlet_relationship_with_outletIDENTICAL
NSN4810-01-419-2659
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8557-027-065 · 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
SUBSTITUTES & CROSS-REFERENCES 2
83309-46 IT 5 P/N 8557-027-065Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
83309-46Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8557-027-065?
8557-027-065 is a STEM,FLUID VALVE.
What parts can replace 8557-027-065?
There are 2 known substitutes for 8557-027-065: 83309-46 IT 5 P/N 8557-027-065, 83309-46. Substitute compatibility should be verified for your specific system.
What is the NSN for 8557-027-065?
8557-027-065 is cataloged in the U.S. Government catalog under NSN 4810-01-419-2659. 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.