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3903-05546 — ADAPTER,STRAIGHT,TUBE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3903-05546: ADAPTER,STRAIGHT,TUBE TO HOSE.

The ADAPTER,STRAIGHT,TUBE TO HOSE is a the manufacturer industrial component. Key specifications include seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: SOCKET (HOSE) SECOND END, nominal_thread_size: 0.562 INCHES FIRST END IN, thread_series_designator: UNF FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-261-6569, 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
3903-05546
NSN: 4730-01-261-6569
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 5Y490 — EATON CORP INDUSTRIAL POLYMER PRODUCTS DIV (USA)
SPECIFICATIONS
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleSOCKET (HOSE) SECOND END
nominal_thread_size0.562 INCHES FIRST END IN
thread_series_designatorUNF FIRST END
part_name_assigned_by_controlling_agencyADAPTER,STRAIGHT,TUBE TO HOSE
nominal_inside_diameter_hose_accommodated0.312 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.375 INCHES FIRST END IN
NSN4730-01-261-6569
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3903-05546 · 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: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.312 INCHES SECOND END IN
•
CONNECTION TYPE: UNTHREADED INTERNAL HOSE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES FIRST END IN
•
NOMINAL THREAD SIZE: 0.562 INCHES FIRST END IN
•
SEAT ANGLE: 37.0 DEGREES FIRST END
TECHNICAL CHARACTERISTICS
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
CONNECTION STYLESOCKET (HOSE) SECOND END
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.312 INCHES SECOND END IN
CONNECTION TYPEUNTHREADED INTERNAL HOSE SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER,STRAIGHT,TUBE TO HOSE
THREAD CLASS2B FIRST END
SUBSTITUTES & CROSS-REFERENCES 1
316881Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3903-05546?
3903-05546 is a ADAPTER,STRAIGHT,TUBE TO HOSE.
What parts can replace 3903-05546?
There is 1 known substitute for 3903-05546: 316881. Substitute compatibility should be verified for your specific system.
What is the NSN for 3903-05546?
3903-05546 is cataloged in the U.S. Government catalog under NSN 4730-01-261-6569. This indicates validated use in U.S. government and defense supply chains.
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