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Technical Data Sheet
PartsTable / COMPONENT / FIG B-109 SZ 1 IN
FIG B-109 SZ 1 IN ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: COPPER ALLOY SEAT, stem_type: RISING, valve_size: 1.000 INCHES IN, bonnet_type: INSIDE SCREW, pressure_class: ERR-060, connection_type: SOLDER, TUBE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-959-5089, 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
FIG B-109 SZ 1 IN
NSN: 4820-00-959-5089
FSC: 4820
CAGE: 82666 — STOCKHAM VALVES AND FITTINGS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEAT
stem_typeRISING
valve_size1.000 INCHES IN
bonnet_typeINSIDE SCREW
pressure_classERR-060
connection_typeSOLDER, TUBE
features_providedBONNET PACKING
valve_operation_methodMANUAL
bonnet_attachment_methodTHREADED
operating_pressure_and_type15.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
inlet_relationship_with_outletIDENTICAL
material_document_and_classificationASTM B371 ALLOY694 ASSN STD SINGLE MATERIAL RESPONSE STEM
NSN4820-00-959-5089
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: FIG B-109 SZ 1 IN · 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: COPPER ALLOY 836 DISK
•
BONNET ATTACHMENT METHOD: THREADED
•
FEATURES PROVIDED: BONNET PACKING
•
BONNET TYPE: INSIDE SCREW
•
PRESSURE CLASS: ERR-060
•
OPERATING PRESSURE AND TYPE: 15.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.125 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 836 DISK
BONNET ATTACHMENT METHODTHREADED
FEATURES PROVIDEDBONNET PACKING
BONNET TYPEINSIDE SCREW
PRESSURE CLASSERR-060
OPERATING PRESSURE AND TYPE15.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
MATERIALCOPPER ALLOY 836 BODY
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED1.125 INCHES IN
INLET RELATIONSHIP WITH OUTLETIDENTICAL
MATERIAL DOCUMENT AND CLASSIFICATIONASTM B62 ASSN STD SINGLE MATERIAL RESPONSE BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
227-1247P5Interchangeable
interchangeable cross-reference
interchangeable
5L1122Interchangeable
interchangeable cross-reference
interchangeable
T-151Interchangeable
interchangeable cross-reference
interchangeable
B-345-1Interchangeable
interchangeable cross-reference
interchangeable
B345Interchangeable
interchangeable cross-reference
interchangeable
554Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FIG B-109 SZ 1 IN?
FIG B-109 SZ 1 IN is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace FIG B-109 SZ 1 IN?
There are 31 known substitutes for FIG B-109 SZ 1 IN: 227-1247P5, 5L1122, T-151 and 28 more. Substitute compatibility should be verified for your specific system.
Is FIG B-109 SZ 1 IN still available?
FIG B-109 SZ 1 IN 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