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PartsTable / COMPONENT / 6668586 ITEM VR-3/4
6668586 ITEM VR-3/4 ✓ 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 6668586 ITEM VR-3/4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-340-4038, 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
6668586 ITEM VR-3/4
NSN: 4820-01-340-4038
FSC: 4820
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
Part Number6668586 ITEM VR-3/4
NSN4820-01-340-4038
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 6668586 ITEM VR-3/4 · 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 PIPE ALL ENDS
•
VALVE DISCHARGE FLOW RATE: 40.0 GALLONS PER MINUTE
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
OPENING PRESSURE SETTING: 1500.0 POUNDS PER SQUARE INCH LBS
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
CONNECTION STYLE: PLAIN,OPTIONAL END(PIPE) ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
VALVE DISCHARGE FLOW RATE40.0 GALLONS PER MINUTE
THREAD SERIES DESIGNATORNPT ALL ENDS
VALVE OPERATION METHODAUTOMATIC
OPENING PRESSURE SETTING1500.0 POUNDS PER SQUARE INCH LBS
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN,OPTIONAL END(PIPE) ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
ADJUSTABLE PRESSURE RANGE+150.0 TO 3000.0 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
204-1003-007Interchangeable
interchangeable cross-reference
interchangeable
6668586 ITEM C-3/4Interchangeable
interchangeable cross-reference
interchangeable
204-1003Interchangeable
interchangeable cross-reference
interchangeable
6668586Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6668586 ITEM VR-3/4?
6668586 ITEM VR-3/4 is a 6668586 ITEM VR-3/4.
What parts can replace 6668586 ITEM VR-3/4?
There are 4 known substitutes for 6668586 ITEM VR-3/4: 204-1003-007, 6668586 ITEM C-3/4, 204-1003 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6668586 ITEM VR-3/4?
6668586 ITEM VR-3/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-340-4038. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026