PartsTable
Technical Data Sheet
959B ✓ 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 CHASE NIPPLE,CONDUIT is a the manufacturer industrial component. Key specifications include material: IRON MALLEABLE OR STEEL, bonnet_type: INSIDE SPRING, connection_type: THREADED EXTERNAL PIPE FIRST END, furnished_items: INSULATOR, connection_style: PLAIN (PIPE) FIRST END, style_designator: STANDARD. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-683-8922, 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
959B
NSN: 4820-00-683-8922
FSC: 4820
CAGE: 58553 — SUPERIOR VALVE CO (USA)
SPECIFICATIONS
materialIRON MALLEABLE OR STEEL
bonnet_typeINSIDE SPRING
connection_typeTHREADED EXTERNAL PIPE FIRST END
furnished_itemsINSULATOR
connection_stylePLAIN (PIPE) FIRST END
style_designatorSTANDARD
thread_directionRIGHT-HAND FIRST END
features_providedVALVE STEM LOCK SHIELD
surface_treatmentCADMIUM OR CHROMATE ZINC
operating_pressure500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
disk_loading_methodSPRING
flow_control_deviceDISK
NSN4820-00-683-8922
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 959B · 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
FEATURES PROVIDED: VALVE STEM LOCK SHIELD
THREAD DIRECTION: RIGHT-HAND FIRST END
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNED: AIR SINGLE RESPONSE
MATERIAL: COPPER ALLOY BODY
OPENING PRESSURE SETTING: 475.0 POUNDS PER SQUARE INCH LBS
OPERATING PRESSURE: 500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATOR: ANGLE
TECHNICAL CHARACTERISTICS (FLIS)
FEATURES PROVIDEDVALVE STEM LOCK SHIELD
THREAD DIRECTIONRIGHT-HAND FIRST END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDAIR SINGLE RESPONSE
MATERIALCOPPER ALLOY BODY
OPENING PRESSURE SETTING475.0 POUNDS PER SQUARE INCH LBS
OPERATING PRESSURE500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORANGLE
THREAD SERIES DESIGNATORNPT FIRST END
NOMINAL THREAD SIZE0.250 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
1950Interchangeable
interchangeable cross-reference
interchangeable
1110-1Interchangeable
interchangeable cross-reference
interchangeable
959BC475Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 959B?
959B is a CHASE NIPPLE,CONDUIT.
What parts can replace 959B?
There are 3 known substitutes for 959B: 1950, 1110-1, 959BC475. Substitute compatibility should be verified for your specific system.
What is the NSN for 959B?
959B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-683-8922. This indicates validated use in U.S. government and defense supply chains.
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