PartsTable
Technical Data Sheet
658-1 1-2-35LB ✓ 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

CAPACITOR,VARIABLE,CERAMIC DIELE. Key specifications include material: STEEL STEM, connection_type: THREADED INTERNAL PIPE FIRST END, connection_style: PLAIN,OPTIONAL END(PIPE) FIRST END, style_designator: ANGLE, thread_direction: RIGHT-HAND FIRST END, features_provided: PRESSURE TIGHT OUTLET SIDE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-359-5676, 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
658-1 1-2-35LB
NSN: 4820-00-359-5676
FSC: 4820
CAGE: 37239 — LUNKENHEIMER CO (USA)
SPECIFICATIONS
materialSTEEL STEM
connection_typeTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN,OPTIONAL END(PIPE) FIRST END
style_designatorANGLE
thread_directionRIGHT-HAND FIRST END
features_providedPRESSURE TIGHT OUTLET SIDE
disk_loading_methodSPRING
flow_control_deviceDISK
nominal_thread_size1.500 INCHES SECOND END IN
valve_operation_methodAUTOMATIC
opening_pressure_setting35.0 POUNDS PER SQUARE INCH LBS
thread_quantity_per_inch11-1/2 FIRST END
NSN4820-00-359-5676
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS SIZE: — · — · — PN: 658-1 1-2-35LB · 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 SEAT
FLOW CONTROL DEVICE: DISK
DISK LOADING METHOD: SPRING
NOMINAL PIPE SIZE ACCOMMODATED: 1.500 INCHES FIRST END IN
CONNECTION STYLE: PLAIN (PIPE) SECOND END
THREAD QUANTITY PER INCH: 11-1/2 FIRST END
THREAD SERIES DESIGNATOR: NPT SECOND END
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY 836 SEAT
FLOW CONTROL DEVICEDISK
MATERIALCOPPER ALLOY FLOW CONTROL DEVICE
DISK LOADING METHODSPRING
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
THREAD QUANTITY PER INCH11-1/2 FIRST END
THREAD SERIES DESIGNATORNPT SECOND END
STYLE DESIGNATORANGLE
NOMINAL PIPE SIZE ACCOMMODATED1.500 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
9402-3Interchangeable
interchangeable cross-reference
interchangeable
A94023Interchangeable
interchangeable cross-reference
interchangeable
562117-23Interchangeable
interchangeable cross-reference
interchangeable
2920137-023Interchangeable
interchangeable cross-reference
interchangeable
640-23Interchangeable
interchangeable cross-reference
interchangeable
60HInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 658-1 1-2-35LB?
658-1 1-2-35LB is a CAPACITOR,VARIABLE,CERAMIC DIELE.
What parts can replace 658-1 1-2-35LB?
There are 10 known substitutes for 658-1 1-2-35LB: 9402-3, A94023, 562117-23 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 658-1 1-2-35LB?
658-1 1-2-35LB is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-359-5676. This indicates validated use in U.S. government and defense supply chains.
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