PartsTable
Technical Data Sheet
437-420 STYLE 1 ✓ 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: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL, reducer_type: CONCENTRIC, connection_type: UNTHREADED INTERNAL PIPE FIRST END, connection_style: PLAIN (PIPE) SECOND END, nominal_overall_length: 3.750 INCHES IN, nominal_pipe_size_accommodated: 2.000 INCHES SECOND END 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 4730-01-185-2358, 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
437-420 STYLE 1
NSN: 4730-01-185-2358
FSC: 4730
CAGE: 14889 — GEORGE FISCHER SLOANE, INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
reducer_typeCONCENTRIC
connection_typeUNTHREADED INTERNAL PIPE FIRST END
connection_stylePLAIN (PIPE) SECOND END
nominal_overall_length3.750 INCHES IN
nominal_pipe_size_accommodated2.000 INCHES SECOND END IN
NSN4730-01-185-2358
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 437-420 STYLE 1 · 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
CONNECTION TYPE: UNTHREADED INTERNAL PIPE FIRST END
CONNECTION STYLE: PLAIN (PIPE) SECOND END
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
REDUCER TYPE: CONCENTRIC
NOMINAL PIPE SIZE ACCOMMODATED: 4.000 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL PIPE SECOND END
CONNECTION STYLEPLAIN (PIPE) SECOND END
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
REDUCER TYPECONCENTRIC
NOMINAL PIPE SIZE ACCOMMODATED4.000 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED2.000 INCHES SECOND END IN
CONNECTION STYLESOCKET (PIPE) FIRST END
NOMINAL OVERALL LENGTH3.750 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
D2466Interchangeable
interchangeable cross-reference
interchangeable
402-094Interchangeable
interchangeable cross-reference
interchangeable
429-007Interchangeable
interchangeable cross-reference
interchangeable
N13107Interchangeable
interchangeable cross-reference
interchangeable
4002Interchangeable
interchangeable cross-reference
interchangeable
406-007Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 437-420 STYLE 1?
437-420 STYLE 1 is a HEATING ELEMENT,ELECTRICAL,IMMER.
What parts can replace 437-420 STYLE 1?
There are 18 known substitutes for 437-420 STYLE 1: D2466, 402-094, 429-007 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 437-420 STYLE 1?
437-420 STYLE 1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-185-2358. This indicates validated use in U.S. government and defense supply chains.
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