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Technical Data Sheet
PartsTable / COMPONENT / 4S7811-1
4S7811-1 ✓ 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: NICKEL ALLOY, thread_class: 2B, overall_height: 1.410 INCHES NOMINAL IN, outside_diameter: 1.388 INCHES NOMINAL IN, nominal_thread_size: 0.625 INCHES IN, thread_series_designator: UNF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-606-1846, 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
4S7811-1
NSN: 4820-00-606-1846
FSC: 4820
CAGE: 63449 — TULSA MACHINE WORKS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
thread_class2B
overall_height1.410 INCHES NOMINAL IN
outside_diameter1.388 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
thread_series_designatorUNF
NSN4820-00-606-1846
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 4S7811-1 · 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
•
MATERIAL: NICKEL ALLOY
•
OUTSIDE DIAMETER: 1.388 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNF
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.410 INCHES NOMINAL IN
MATERIALNICKEL ALLOY
OUTSIDE DIAMETER1.388 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNF
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD CLASS2B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
8000-26Interchangeable
interchangeable cross-reference
interchangeable
A7419-001-128Interchangeable
interchangeable cross-reference
interchangeable
9566PC16Interchangeable
interchangeable cross-reference
interchangeable
4824-3257951REVDPC29Interchangeable
Same NIIN cross-reference
interchangeable
A7419.001.128Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4S7811-1?
4S7811-1 is a DISK,VALVE.
What parts can replace 4S7811-1?
There are 5 known substitutes for 4S7811-1: 8000-26, A7419-001-128, 9566PC16 and 2 more. Substitute compatibility should be verified for your specific system.
Is 4S7811-1 still available?
4S7811-1 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