PartsTable
Technical Data Sheet
20318 ASSY 20318QS41M ✓ 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,SAFETY RELIEF is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY SEAT, valve_size: 1.500 INCHES IN, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: ANGLE FLANGED ENDS, nominal_thickness: 0.812 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 (FLIS) under NSN 4820-01-363-2100, 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
20318 ASSY 20318QS41M
NSN: 4820-01-363-2100
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialNICKEL ALLOY SEAT
valve_size1.500 INCHES IN
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorANGLE FLANGED ENDS
nominal_thickness0.812 INCHES ALL ENDS IN
bolt_hole_quantity6 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure250.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
flow_control_deviceDISK
maximum_operating_temp150.0 FAHRENHEIT SECOND RESPONSE DEGF
valve_operation_methodAUTOMATIC
NSN4820-01-363-2100
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20318 ASSY 20318QS41M · 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 STEM
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
BOLT HOLE QUANTITY: 6 ALL ENDS
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SECOND RESPONSE
MAXIMUM OPERATING TEMP: 425.0 FAHRENHEIT FIRST RESPONSE DEGF
VALVE SIZE: 1.500 INCHES IN
CONNECTION TYPE: FLANGE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALNICKEL ALLOY STEM
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
BOLT HOLE QUANTITY6 ALL ENDS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
MAXIMUM OPERATING TEMP425.0 FAHRENHEIT FIRST RESPONSE DEGF
VALVE SIZE1.500 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
MATERIALNICKEL ALLOY SEAT
FLANGE SHAPEROUND WITH HOLES ALL ENDS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MILV24332GRB1 1-2 250-15-30FInterchangeable
interchangeable cross-reference
interchangeable
20318Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-24332Interchangeable
interchangeable cross-reference
interchangeable
918Interchangeable
interchangeable cross-reference
interchangeable
803-2177518-12XX-34Interchangeable
interchangeable cross-reference
interchangeable
150-619FFPC318Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20318 ASSY 20318QS41M?
20318 ASSY 20318QS41M is a VALVE,SAFETY RELIEF.
What parts can replace 20318 ASSY 20318QS41M?
There are 19 known substitutes for 20318 ASSY 20318QS41M: MILV24332GRB1 1-2 250-15-30F, 20318, MIL-DTL-24332 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20318 ASSY 20318QS41M?
20318 ASSY 20318QS41M is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-363-2100. This indicates validated use in U.S. government and defense supply chains.
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