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Technical Data Sheet
PartsTable / COMPONENT / 8526085
8526085 ✓ 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 DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 30.0 DEGREES NOMINAL, overall_height: 0.656 INCHES NOMINAL IN, shank_diameter: 0.156 INCHES NOMINAL IN, flange_diameter: 0.312 INCHES NOMINAL IN, outside_diameter: 0.312 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-647-1870, 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
8526085
NSN: 4820-00-647-1870
FSC: 4820
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialSTEEL
seat_angle30.0 DEGREES NOMINAL
overall_height0.656 INCHES NOMINAL IN
shank_diameter0.156 INCHES NOMINAL IN
flange_diameter0.312 INCHES NOMINAL IN
outside_diameter0.312 INCHES NOMINAL IN
special_featuresWITH RECESSED HEX WRENCHING FACILITY
style_designatorCONE CHECK
under_flange_height0.344 INCHES NOMINAL IN
flange_seat_to_disk_end_height0.312 INCHES NOMINAL IN
NSN4820-00-647-1870
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 8526085 · 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
•
UNDER FLANGE HEIGHT: 0.344 INCHES NOMINAL IN
•
FLANGE DIAMETER: 0.312 INCHES NOMINAL IN
•
SEAT ANGLE: 30.0 DEGREES NOMINAL
•
SHANK DIAMETER: 0.156 INCHES NOMINAL IN
•
MATERIAL: STEEL
•
OUTSIDE DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT0.656 INCHES NOMINAL IN
UNDER FLANGE HEIGHT0.344 INCHES NOMINAL IN
SPECIAL FEATURESWITH RECESSED HEX WRENCHING FACILITY
FLANGE DIAMETER0.312 INCHES NOMINAL IN
SEAT ANGLE30.0 DEGREES NOMINAL
SHANK DIAMETER0.156 INCHES NOMINAL IN
MATERIALSTEEL
OUTSIDE DIAMETER0.312 INCHES NOMINAL IN
STYLE DESIGNATORCONE CHECK
FLANGE SEAT TO DISK END HEIGHT0.312 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
20519Interchangeable
interchangeable cross-reference
interchangeable
A3049A3108Interchangeable
interchangeable cross-reference
interchangeable
A3342Interchangeable
interchangeable cross-reference
interchangeable
REPAIR PARTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8526085?
8526085 is a DISK,VALVE.
What parts can replace 8526085?
There are 4 known substitutes for 8526085: 20519, A3049A3108, A3342 and 1 more. Substitute compatibility should be verified for your specific system.
Is 8526085 still available?
8526085 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026