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539448 ✓ 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,NONIM. Key specifications include phase: NOT RATED SINGLE VOLTAGE, length: 8.312 INCHES NOMINAL IN, material: CHROMIUM AND STEEL SHEATH, body_style: TUBULAR, THREADED TERMINALS, overall_length: 11.500 INCHES NOMINAL IN, terminal_length: 0.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-246-9217, 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
539448
NSN: 4730-00-246-9217
FSC: 4730
CAGE: 07464 — BADGER FIRE PROTECTION INC (USA)
SPECIFICATIONS
phaseNOT RATED SINGLE VOLTAGE
length8.312 INCHES NOMINAL IN
materialCHROMIUM AND STEEL SHEATH
body_styleTUBULAR, THREADED TERMINALS
heat_quantity1
overall_length11.500 INCHES NOMINAL IN
terminal_length0.750 INCHES NOMINAL IN
thread_quantity18.0 PER INCH MOUNTING FACILITY
element_quantity1
special_featuresWITH HEX NUTS 6; FLAT WASHERS 8; LOCK WASHERS 2
terminal_quantity2
nominal_thread_size0.625 INCHES MOUNTING FACILITY IN
NSN4730-00-246-9217
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 539448 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
0001378Interchangeable
interchangeable cross-reference
interchangeable
0001378-1Interchangeable
interchangeable cross-reference
interchangeable
M461Interchangeable
interchangeable cross-reference
interchangeable
M-473Interchangeable
interchangeable cross-reference
interchangeable
57B126-1-16GInterchangeable
interchangeable cross-reference
interchangeable
C233275-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 539448?
539448 is a HEATING ELEMENT,ELECTRICAL,NONIM.
What parts can replace 539448?
There are 19 known substitutes for 539448: 0001378, 0001378-1, M461 and 16 more. Substitute compatibility should be verified for your specific system.
Is 539448 still available?
539448 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026