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RCSK14861-4 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

CAPACITOR,VARIABLE,AIR DIELECTRI. Key specifications include capacity: 20.0 MICROLITERS, material: STEEL OVERALL, tube_type: TRANSMIT-RECEIVE, body_shape: OVAL, body_style: PISTON, body_width: 1.312 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-329-9142, 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
RCSK14861-4
NSN: 4730-01-329-9142
FSC: 4730
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
capacity20.0 MICROLITERS
materialSTEEL OVERALL
tube_typeTRANSMIT-RECEIVE
body_shapeOVAL
body_stylePISTON
body_width1.312 INCHES MAXIMUM IN
body_height1.438 INCHES MAXIMUM IN
body_length1.812 INCHES MAXIMUM IN
design_typeDRY
coolant_typeAIR
overall_width11.500 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
NSN4730-01-329-9142
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: RCSK14861-4 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
536377-3Interchangeable
interchangeable cross-reference
interchangeable
138C929H01Interchangeable
interchangeable cross-reference
interchangeable
5853Interchangeable
interchangeable cross-reference
interchangeable
MIL-E-1/504Interchangeable
interchangeable cross-reference
interchangeable
10697Interchangeable
interchangeable cross-reference
interchangeable
BB22197Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RCSK14861-4?
RCSK14861-4 is a CAPACITOR,VARIABLE,AIR DIELECTRI.
What parts can replace RCSK14861-4?
There are 20 known substitutes for RCSK14861-4: 536377-3, 138C929H01, 5853 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for RCSK14861-4?
RCSK14861-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-329-9142. 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