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R431006893 — VALVE,LINEAR,DIRECTIONAL CONTROL

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

R431006893: VALVE,LINEAR,DIRECTIONAL CONTROL.

VALVE,LINEAR,DIRECTIONAL CONTROL. Key specifications include thread_class: 2B, connection_type: THREADED INTERNAL TUBE, nominal_thread_size: 0.562 INCHES IN, valve_operation_method: MANUAL, thread_series_designator: UNF. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-390-4476, 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
R431006893
NSN: 4820-01-390-4476
FSC: 4820 — Valves, Nonpowered
CAGE: 7AJK0 — AVENTICS CORP DIV AVENTICS CORPORATION (USA)
SPECIFICATIONS
thread_class2B
connection_typeTHREADED INTERNAL TUBE
nominal_thread_size0.562 INCHES IN
valve_operation_methodMANUAL
end_connection_quantity2
thread_series_designatorUNF
NSN4820-01-390-4476
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: R431006893 · 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
•
CONNECTION TYPE: THREADED INTERNAL TUBE
•
END CONNECTION QUANTITY: 2
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
THREAD CLASS: 2B
•
THREAD SERIES DESIGNATOR: UNF
•
VALVE OPERATION METHOD: MANUAL
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED INTERNAL TUBE
END CONNECTION QUANTITY2
NOMINAL THREAD SIZE0.562 INCHES IN
THREAD CLASS2B
THREAD SERIES DESIGNATORUNF
VALVE OPERATION METHODMANUAL
SUBSTITUTES & CROSS-REFERENCES 2
R431006838Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
P66838Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 R431006893?
R431006893 is a VALVE,LINEAR,DIRECTIONAL CONTROL.
What parts can replace R431006893?
There are 2 known substitutes for R431006893: R431006838, P66838. Substitute compatibility should be verified for your specific system.
What is the NSN for R431006893?
R431006893 is cataloged in the U.S. Government catalog under NSN 4820-01-390-4476. 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.