PartsTable / COMPONENT / 4U
4U
✓ 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 NIPPLE,TUBE is a the manufacturer industrial component. Key specifications include current_type: AC, voltage_rating: 110.0 VOLTS NOMINAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-061-0389, 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
4U
NSN: 4730-00-061-0389 FSC: 4730 CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
current_type AC voltage_rating 110.0 VOLTS NOMINAL NSN 4730-00-061-0389
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL
END A: —
STRAIGHT
END B: —
SPECIFICATIONS
Thread: —
Material: —
Pressure: —
PN: 4U · 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
• NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
• THREAD SERIES DESIGNATOR: UNF ALL ENDS
• SEAT ANGLE: 20.0 DEGREES ALL ENDS
• MATERIAL: COPPER ALLOY OVERALL
• NOMINAL OVERALL LENGTH: 1.609 INCHES IN
• STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY
• FURNISHED ITEMS AND QUANTITY: 2 TUBE COUPLING NUT
• NOMINAL THREAD SIZE: 0.438 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES ALL ENDS IN THREAD SERIES DESIGNATOR UNF ALL ENDS SEAT ANGLE 20.0 DEGREES ALL ENDS MATERIAL COPPER ALLOY OVERALL NOMINAL OVERALL LENGTH 1.609 INCHES IN STYLE DESIGNATOR FLARELESS W/ CENTER WRENCHING FACILITY FURNISHED ITEMS AND QUANTITY 2 TUBE COUPLING NUT NOMINAL THREAD SIZE 0.438 INCHES ALL ENDS IN THREAD CLASS 2A ALL ENDS A CONNECTION STYLE FLARELESS (TUBE) ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
CD4 Interchangeable interchangeable cross-reference
interchangeable
4SC4 Interchangeable interchangeable cross-reference
interchangeable
4U Interchangeable interchangeable cross-reference
interchangeable
762FB Interchangeable interchangeable cross-reference
interchangeable
762FB1-4 Interchangeable Same NIIN cross-reference
interchangeable
B55125-004 Interchangeable Same NIIN cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4U?
4U is a NIPPLE,TUBE.
What parts can replace 4U?
There are 8 known substitutes for 4U: CD4, 4SC4, 4U and 5 more. Substitute compatibility should be verified for your specific system.
Is 4U still available?
4U is currently cancelled.