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0027538 — CIRCUIT CARD ASSEMBLY

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

0027538: CIRCUIT CARD ASSEMBLY.

The CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 0.375 INCHES NOMINAL THIRD END IN, seat_angle: 42.0 DEGREES FIRST END, thread_class: 2B SECOND END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: INVERTED FLARE (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-639-9174, 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
0027538
NSN: 4730-00-639-9174
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 71995 — DRESSER INDUSTRIES INC WAUKESHA ENGINE DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.375 INCHES NOMINAL THIRD END IN
seat_angle42.0 DEGREES FIRST END
thread_class2B SECOND END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleINVERTED FLARE (TUBE) FIRST END
surface_treatmentCADMIUM AND ZINC OUTSIDE
nominal_thread_size0.125 INCHES THIRD END IN
thread_series_designatorUNF FIRST END
nominal_outside_diameter_tube_accommodated0.312 INCHES SECOND END IN
NSN4730-00-639-9174
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 0027538 · 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 STYLE: INVERTED FLARE (TUBE) FIRST END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE THIRD END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.312 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEINVERTED FLARE (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) THIRD END
CONNECTION STYLEINVERTED FLARE (TUBE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE THIRD END
CONNECTION TYPETHREADED INTERNAL TUBE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.312 INCHES SECOND END IN
LEG LENGTH0.375 INCHES NOMINAL THIRD END IN
LEG LENGTH0.469 INCHES NOMINAL FIRST END IN
SUBSTITUTES & CROSS-REFERENCES 1
143490Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0027538?
0027538 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 0027538?
There is 1 known substitute for 0027538: 143490. Substitute compatibility should be verified for your specific system.
What is the NSN for 0027538?
0027538 is cataloged in the U.S. Government catalog under NSN 4730-00-639-9174. This indicates validated use in U.S. government and defense supply chains.
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