PartsTable
Technical Data Sheet
20309SS91SS ✓ 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: STEEL CORROSION RESISTING OVERALL, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: PLAIN (TUBE) ALL ENDS, style_designator: ANGLE, thread_direction: RIGHT-HAND ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-167-9066, 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
20309SS91SS
NSN: 4820-01-167-9066
FSC: 4820
CAGE: 01343 — ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_stylePLAIN (TUBE) ALL ENDS
style_designatorANGLE
thread_directionRIGHT-HAND ALL ENDS
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size0.500 INCHES ALL ENDS IN
valve_operation_methodAUTOMATIC
media_for_which_designedACETYLENE SINGLE RESPONSE
NSN4820-01-167-9066
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 20309SS91SS · 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
ADJUSTABLE PRESSURE RANGE: +443.0 TO 518.0 POUNDS PER SQUARE INCH LBS
MEDIA FOR WHICH DESIGNED: ACETYLENE SINGLE RESPONSE
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
THREAD CLASS: 3A ALL ENDS A
FLOW CONTROL DEVICE: DISK
MATERIAL: STEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND ALL ENDS
ADJUSTABLE PRESSURE RANGE+443.0 TO 518.0 POUNDS PER SQUARE INCH LBS
MEDIA FOR WHICH DESIGNEDACETYLENE SINGLE RESPONSE
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
THREAD CLASS3A ALL ENDS A
FLOW CONTROL DEVICEDISK
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
OPERATING PRESSURE1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
VALVE OPERATION METHODAUTOMATIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
H20309Interchangeable
interchangeable cross-reference
interchangeable
19616Interchangeable
interchangeable cross-reference
interchangeable
19917Interchangeable
interchangeable cross-reference
interchangeable
M2-330-75-1C13Interchangeable
interchangeable cross-reference
interchangeable
10106624Interchangeable
interchangeable cross-reference
interchangeable
20309Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20309SS91SS?
20309SS91SS is a VALVE,SAFETY RELIEF.
What parts can replace 20309SS91SS?
There are 18 known substitutes for 20309SS91SS: H20309, 19616, 19917 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20309SS91SS?
20309SS91SS is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-167-9066. This indicates validated use in U.S. government and defense supply chains.
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