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X20526L1 — DISK,VALVE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

X20526L1: DISK,VALVE.

The DISK,VALVE is a the manufacturer industrial component. Key specifications include material: STEEL, seat_angle: 45.0 DEGREES NOMINAL, thread_class: 2A A, overall_height: 0.650 INCHES NOMINAL IN, shoulder_width: 0.070 INCHES NOMINAL IN, shoulder_height: 0.350 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-00-067-8539, 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
X20526L1
NSN: 4820-00-067-8539
FSC: 4820 — Valves, Nonpowered
CAGE: 26505 — GROVE VALVE OPERATIONS (USA)
SPECIFICATIONS
materialSTEEL
seat_angle45.0 DEGREES NOMINAL
thread_class2A A
overall_height0.650 INCHES NOMINAL IN
shoulder_width0.070 INCHES NOMINAL IN
shoulder_height0.350 INCHES NOMINAL IN
style_designatorPLUG
nominal_thread_size0.313 INCHES IN
thread_series_designatorUNF
NSN4820-00-067-8539
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: X20526L1 · 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
•
SHOULDER WIDTH: 0.070 INCHES NOMINAL IN
•
SHOULDER HEIGHT: 0.350 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PLUG
•
SEAT ANGLE: 45.0 DEGREES NOMINAL
•
NOMINAL THREAD SIZE: 0.313 INCHES IN
•
THREAD CLASS: 2A A
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.650 INCHES NOMINAL IN
SHOULDER WIDTH0.070 INCHES NOMINAL IN
SHOULDER HEIGHT0.350 INCHES NOMINAL IN
STYLE DESIGNATORPLUG
SEAT ANGLE45.0 DEGREES NOMINAL
NOMINAL THREAD SIZE0.313 INCHES IN
THREAD CLASS2A A
MATERIALSTEEL
THREAD SERIES DESIGNATORUNF
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 X20526L1?
X20526L1 is a DISK,VALVE.
What is the NSN for X20526L1?
X20526L1 is cataloged in the U.S. Government catalog under NSN 4820-00-067-8539. 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.