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500311 ITEM 30 — Technical Data Sheet

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— · 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 VALVE,CHECK is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN, OPTIONAL END (PIPE) ALL ENDS, style_designator: STRAIGHT THRU, thread_direction: RIGHT-HAND ALL ENDS, nominal_thread_size: 0.375 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4820-01-450-8284, 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
500311 ITEM 30
NSN: 4820-01-450-8284
FSC: 4820
CAGE: 0AR12 — COFFIN WORLD WATER SYSTEMS, LLC DBA COFFIN WORLD WATER SYSTEMS, LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN, OPTIONAL END (PIPE) ALL ENDS
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND ALL ENDS
nominal_thread_size0.375 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
thread_series_designatorNPT ALL ENDS
NSN4820-01-450-8284
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 500311 ITEM 30 · 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
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
CONNECTION STYLE: PLAIN, OPTIONAL END (PIPE) ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
VALVE OPERATION METHOD: AUTOMATIC
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
STYLE DESIGNATOR: STRAIGHT THRU
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
CONNECTION STYLEPLAIN, OPTIONAL END (PIPE) ALL ENDS
MATERIALCOPPER ALLOY BODY
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
VALVE OPERATION METHODAUTOMATIC
THREAD SERIES DESIGNATORNPT ALL ENDS
STYLE DESIGNATORSTRAIGHT THRU
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
500311InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
JANR11InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6502-3137220PCSYMB0LR124InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5003-011InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9417744InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
CAP 76AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 500311 ITEM 30?
500311 ITEM 30 is a VALVE,CHECK.
What parts can replace 500311 ITEM 30?
There are 13 known substitutes for 500311 ITEM 30: 500311, JANR11, 6502-3137220PCSYMB0LR124 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 500311 ITEM 30?
500311 ITEM 30 is cataloged in the Federal Logistics Information System under NSN 4820-01-450-8284. 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: September 2026