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PartsTable / COMPONENT / S111-1-2
S111-1-2 ✓ 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 ALLOY STEM, stem_type: RISING, valve_size: 0.500 INCHES IN, bonnet_type: INSIDE SCREW, connection_type: SOCKET, WELD, PIPE, valve_operation_method: MANUAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-01-231-2697, 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
S111-1-2
NSN: 4820-01-231-2697
FSC: 4820
CAGE: 12168 — NIBCO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY STEM
stem_typeRISING
valve_size0.500 INCHES IN
bonnet_typeINSIDE SCREW
connection_typeSOCKET, WELD, PIPE
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
inlet_relationship_with_outletIDENTICAL
nominal_pipe_size_accommodated0.250 INCHES IN
NSN4820-01-231-2697
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: S111-1-2 · 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
•
BONNET ATTACHMENT METHOD: THREADED
•
CONNECTION TYPE: SOCKET, WELD, PIPE
•
VALVE OPERATION METHOD: MANUAL
•
VALVE SIZE: 0.500 INCHES IN
•
MATERIAL: COPPER ALLOY STEM
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES IN
•
BONNET TYPE: INSIDE SCREW
TECHNICAL CHARACTERISTICS (FLIS)
BONNET ATTACHMENT METHODTHREADED
CONNECTION TYPESOCKET, WELD, PIPE
VALVE OPERATION METHODMANUAL
VALVE SIZE0.500 INCHES IN
MATERIALCOPPER ALLOY STEM
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES IN
BONNET TYPEINSIDE SCREW
MATERIALCOPPER ALLOY DISK
INLET RELATIONSHIP WITH OUTLETIDENTICAL
STEM TYPERISING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
7291-2INInterchangeable
interchangeable cross-reference
interchangeable
S-111 1-2INInterchangeable
interchangeable cross-reference
interchangeable
FIG B-109 SZ 1/2 INInterchangeable
interchangeable cross-reference
interchangeable
S-111 1/2INInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S111-1-2?
S111-1-2 is a VALVE,GATE.
What parts can replace S111-1-2?
There are 4 known substitutes for S111-1-2: 7291-2IN, S-111 1-2IN, FIG B-109 SZ 1/2 IN and 1 more. Substitute compatibility should be verified for your specific system.
Is S111-1-2 still available?
S111-1-2 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026