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31G42 ✓ 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 VALVE,FLOW CONTROL is a the manufacturer industrial component. Key specifications include valve_size: 0.500 INCHES IN, body_material: STEEL, connection_type: THREADED INTERNAL PIPE, nominal_thread_size: 0.500 INCHES IN, thread_series_designator: NPT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-209-1597, 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
31G42
NSN: 4820-00-209-1597
FSC: 4820
CAGE: 05643 — BARBER-GREENE CO (USA)
SPECIFICATIONS
valve_size0.500 INCHES IN
body_materialSTEEL
connection_typeTHREADED INTERNAL PIPE
nominal_thread_size0.500 INCHES IN
end_connection_quantity3
thread_series_designatorNPT
NSN4820-00-209-1597
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 31G42 · 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
•
BODY MATERIAL: STEEL
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
END CONNECTION QUANTITY: 3
•
VALVE SIZE: 0.500 INCHES IN
•
THREAD SERIES DESIGNATOR: NPT
•
CONNECTION TYPE: THREADED INTERNAL PIPE
TECHNICAL CHARACTERISTICS (FLIS)
BODY MATERIALSTEEL
NOMINAL THREAD SIZE0.500 INCHES IN
END CONNECTION QUANTITY3
VALVE SIZE0.500 INCHES IN
THREAD SERIES DESIGNATORNPT
CONNECTION TYPETHREADED INTERNAL PIPE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
2818Interchangeable
interchangeable cross-reference
interchangeable
864DPC38Interchangeable
interchangeable cross-reference
interchangeable
311-00Interchangeable
interchangeable cross-reference
interchangeable
ANGIOCATHInterchangeable
interchangeable cross-reference
interchangeable
24325SInterchangeable
interchangeable cross-reference
interchangeable
TP2818Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31G42?
31G42 is a VALVE,FLOW CONTROL.
What parts can replace 31G42?
There are 15 known substitutes for 31G42: 2818, 864DPC38, 311-00 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 31G42?
31G42 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-209-1597. 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