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PartsTable / COMPONENT / 721905-6
721905-6 ✓ 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,GATE is a the manufacturer industrial component. Key specifications include material: COPPER STEM, stem_type: NONRISINGNONRISING, valve_size: 1.000 INCHES1.000 INCHES IN, bonnet_type: INSIDE SCREWINSIDE SCREW, connection_type: SOCKET, WELD, TUBESOCKET, WELD, TUBE, special_features: 180 DEG F180 DEG F. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-176-4289, 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
721905-6
NSN: 4820-00-176-4289
FSC: 4820
CAGE: 05869 — RAYTHEON COMPANY DIV RMD STRATEGIC (USA)
SPECIFICATIONS
materialCOPPER STEM
stem_typeNONRISINGNONRISING
valve_size1.000 INCHES1.000 INCHES IN
bonnet_typeINSIDE SCREWINSIDE SCREW
connection_typeSOCKET, WELD, TUBESOCKET, WELD, TUBE
special_features180 DEG F180 DEG F
valve_operation_methodMANUALMANUAL
bonnet_attachment_methodTHREADEDTHREADED
inlet_relationship_with_outletIDENTICALIDENTICAL
nominal_outside_diameter_tube_accommodated1.000 INCHES1.000 INCHES IN
NSN4820-00-176-4289
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 721905-6 · 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 SERIES DESIGNATOR: NPT
•
NOMINAL THREAD SIZE: 1.000 INCHES IN
•
STEM TYPE: NONRISING
•
INLET RELATIONSHIP WITH OUTLET: IDENTICAL
•
BONNET ATTACHMENT METHOD: THREADED
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIES DESIGNATORNPT
NOMINAL THREAD SIZE1.000 INCHES IN
STEM TYPENONRISING
INLET RELATIONSHIP WITH OUTLETIDENTICAL
THREAD SERIES DESIGNATORNPT
INLET RELATIONSHIP WITH OUTLETIDENTICAL
BONNET ATTACHMENT METHODTHREADED
STEM TYPENONRISING
MATERIALCOPPER ALLOY BODY
VALVE OPERATION METHODMANUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
S22-1Interchangeable
interchangeable cross-reference
interchangeable
721905-6Interchangeable
interchangeable cross-reference
interchangeable
T122-1Interchangeable
Same NIIN cross-reference
interchangeable
T22-1INInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 721905-6?
721905-6 is a VALVE,GATE.
What parts can replace 721905-6?
There are 4 known substitutes for 721905-6: S22-1, 721905-6, T122-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 721905-6?
721905-6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-176-4289. 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