PartsTable
Technical Data Sheet
57442 ✓ 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

The JUNCTION BOX is a the manufacturer industrial component. Key specifications include material: STEEL BODY, body_width: 4.750 INCHES NOMINAL IN, flow_angle: 90.0 DEGREES, leg_length: 0.812 INCHES NOMINAL SECOND END IN, seat_angle: 50.0 DEGREES FIRST END, body_length: 4.750 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-230-8729, 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
57442
NSN: 4730-00-230-8729
FSC: 4730
CAGE: 00198 — PRATT & WHITNEY CANADA CORP DIV PRATT & WHITNEY CANADA CORP. (CAN)
SPECIFICATIONS
materialSTEEL BODY
body_width4.750 INCHES NOMINAL IN
flow_angle90.0 DEGREES
leg_length0.812 INCHES NOMINAL SECOND END IN
seat_angle50.0 DEGREES FIRST END
body_length4.750 INCHES NOMINAL IN
inside_depth2.750 INCHES NOMINAL IN
thread_class3A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleINVERTED FLARE (TUBE) FIRST END
style_designatorSQUARE-OPPOSITE CORNER TABS
entrance_quantity1
NSN4730-00-230-8729
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 57442 · 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: THREADED EXTERNAL TUBE FIRST END
THREAD CLASS: 3A FIRST END A
THREAD QUANTITY PER INCH: 27 SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
CONNECTION STYLE: PLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: ANPT SECOND END
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
THREAD CLASS3A FIRST END A
THREAD QUANTITY PER INCH27 SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
THREAD SERIES DESIGNATORANPT SECOND END
MATERIALSTEEL CORROSION RESISTING OVERALL
LEG LENGTH0.750 INCHES NOMINAL FIRST END IN
THREAD SERIES DESIGNATORUNF FIRST END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
5744-2Interchangeable
interchangeable cross-reference
interchangeable
45019Interchangeable
interchangeable cross-reference
interchangeable
AN790C4Interchangeable
Same NIIN cross-reference
interchangeable
7410039Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 57442?
57442 is a JUNCTION BOX.
What parts can replace 57442?
There are 4 known substitutes for 57442: 5744-2, 45019, AN790C4 and 1 more. Substitute compatibility should be verified for your specific system.
Is 57442 still available?
57442 is currently cancelled.
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