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Technical Data Sheet
PartsTable / COMPONENT / 1838PC11
1838PC11 ✓ 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,FIXED,PAPER DIELECTRIC. Key specifications include material: COPPER ALLOY STEM, valve_size: 1.000 INCHES IN, bonnet_type: INSIDE SCREW, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: STRAIGHT THRU FLANGED ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-277-1666, 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
1838PC11
NSN: 4820-00-277-1666
FSC: 4820
CAGE: 53964 — KAYDON CUSTOM FILTRATION CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY STEM
valve_size1.000 INCHES IN
bonnet_typeINSIDE SCREW
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorSTRAIGHT THRU FLANGED ENDS
features_providedBONNET PACKING
nominal_thickness0.375 INCHES ALL ENDS IN
bolt_hole_quantity4 ALL ENDS
flange_face_designPLAIN ALL ENDS
operating_pressure225.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SECOND RESPONSE LBS
flow_control_deviceDISK
NSN4820-00-277-1666
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1838PC11 · 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 TYPE: INSIDE SCREW
•
BOLT HOLE QUANTITY: 4 ALL ENDS
•
MAXIMUM OPERATING TEMP: 150.0 FAHRENHEIT SECOND RESPONSE DEGF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
•
MATERIAL: COPPER ALLOY 922 SEAT
•
VALVE SIZE: 1.000 INCHES IN
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
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)
BONNET TYPEINSIDE SCREW
BOLT HOLE QUANTITY4 ALL ENDS
MAXIMUM OPERATING TEMP150.0 FAHRENHEIT SECOND RESPONSE DEGF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D4 FED SPEC SINGLE MATERIAL RESPONSE SEAT
MATERIALCOPPER ALLOY 922 SEAT
MAXIMUM OPERATING TEMP500.0 FAHRENHEIT FIRST RESPONSE DEGF
VALVE SIZE1.000 INCHES IN
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FEATURES PROVIDEDBONNET PACKING
VALVE OPERATION METHODMANUAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
D152-0Interchangeable
interchangeable cross-reference
interchangeable
SCB176509Interchangeable
interchangeable cross-reference
interchangeable
S1518Interchangeable
interchangeable cross-reference
interchangeable
SM15.2MInterchangeable
interchangeable cross-reference
interchangeable
3279615Interchangeable
interchangeable cross-reference
interchangeable
548-3/4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1838PC11?
1838PC11 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace 1838PC11?
There are 12 known substitutes for 1838PC11: D152-0, SCB176509, S1518 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1838PC11?
1838PC11 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-277-1666. 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