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PartsTable / COMPONENT / CS4730-0108C053DH
CS4730-0108C053DH ✓ 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

HEATING ELEMENT,ELECTRICAL,IMMER. Key specifications include material: COPPER ALLOY, thickness: 0.938 INCHES NOMINAL IN, neck_height: 0.875 INCHES NOMINAL IN, socket_depth: 0.625 INCHES NOMINAL IN, flange_diameter: 6.125 INCHES NOMINAL IN, socket_diameter: 2.875 INCHES NOMINAL 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 4730-00-541-4740, 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
CS4730-0108C053DH
NSN: 4730-00-541-4740
FSC: 4730
CAGE: 71905 — DERBYSHIRE MACHINE & TOOL CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thickness0.938 INCHES NOMINAL IN
neck_height0.875 INCHES NOMINAL IN
socket_depth0.625 INCHES NOMINAL IN
flange_diameter6.125 INCHES NOMINAL IN
socket_diameter2.875 INCHES NOMINAL IN
style_designatorROUND, ONE BOLT HOLE CIRCLE
bolt_hole_diameter0.688 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter5.000 INCHES NOMINAL IN
flange_section_stylePLAIN FACE, SOCKET NECK
end_item_identificationJRN KNOX CLASS FF
NSN4730-00-541-4740
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: CS4730-0108C053DH · 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
KEY FEATURES
•
MATERIAL: COPPER ALLOY
•
BOLT CIRCLE DIAMETER: 5.000 INCHES NOMINAL IN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 2.500 INCHES IN
•
FLANGE DIAMETER: 6.125 INCHES NOMINAL IN
•
NECK HEIGHT: 0.875 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: MACHINED
•
OPERATING PRESSURE AND TYPE: 150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
•
STYLE DESIGNATOR: ROUND, ONE BOLT HOLE CIRCLE
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY
BOLT CIRCLE DIAMETER5.000 INCHES NOMINAL IN
NOMINAL PIPE SIZE FOR WHICH DESIGNED2.500 INCHES IN
FLANGE DIAMETER6.125 INCHES NOMINAL IN
NECK HEIGHT0.875 INCHES NOMINAL IN
FACE SEATING SURFACE CONDITIONMACHINED
OPERATING PRESSURE AND TYPE150.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 150.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) STEAM MAXIMUM REQUIRED AND 250.0 POUNDS PER SQUARE INCH (PSI) SALT WATER MAXIMUM REQUIRED LOCATION NOT OTHERWISE SPECIFIED LBS
STYLE DESIGNATORROUND, ONE BOLT HOLE CIRCLE
NONDEFINITIVE SPEC/STD DATAEF TYPE
THICKNESS0.938 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
MILF20042CInterchangeable
interchangeable cross-reference
interchangeable
MILE20042PLAIN250LBCLASSTYPEPRInterchangeable
interchangeable cross-reference
interchangeable
CS4730-0108A0580JInterchangeable
interchangeable cross-reference
interchangeable
CS4730-0108Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-20042Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-20042Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CS4730-0108C053DH?
CS4730-0108C053DH is a HEATING ELEMENT,ELECTRICAL,IMMER.
What parts can replace CS4730-0108C053DH?
There are 15 known substitutes for CS4730-0108C053DH: MILF20042C, MILE20042PLAIN250LBCLASSTYPEPR, CS4730-0108A0580J and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CS4730-0108C053DH?
CS4730-0108C053DH is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-541-4740. 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