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B400-3-4TFT — TEE,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

B400-3-4TFT: TEE,PIPE TO TUBE.

The TEE,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, leg_length: 0.844 INCHES NOMINAL SECOND END IN, seat_angle: 20.0 DEGREES FIRST END, thread_class: 2A THIRD END A, connection_type: THREADED EXTERNAL TUBE THIRD END, connection_style: FLARELESS (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-063-0340, 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
B400-3-4TFT
NSN: 4730-01-063-0340
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
leg_length0.844 INCHES NOMINAL SECOND END IN
seat_angle20.0 DEGREES FIRST END
thread_class2A THIRD END A
connection_typeTHREADED EXTERNAL TUBE THIRD END
connection_styleFLARELESS (TUBE) FIRST END
nominal_thread_size0.438 INCHES FIRST END IN
thread_series_designatorNPT SECOND END
furnished_items_and_quantity2 SHORT COUPLING NUT AND 4 FERRULE SLEEVE
nominal_pipe_size_accommodated0.250 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.250 INCHES THIRD END IN
NSN4730-01-063-0340
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: B400-3-4TFT · 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
•
FURNISHED ITEMS AND QUANTITY: 2 SHORT COUPLING NUT AND 4 FERRULE SLEEVE
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES SECOND END IN
•
CONNECTION STYLE: FLARELESS (TUBE) THIRD END
•
CONNECTION TYPE: THREADED EXTERNAL TUBE THIRD END
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 SHORT COUPLING NUT AND 4 FERRULE SLEEVE
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION STYLEFLARELESS (TUBE) THIRD END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED INTERNAL PIPE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES THIRD END IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 2
4-4-4MBZ-BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
B4-3TFT-4Same 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 B400-3-4TFT?
B400-3-4TFT is a TEE,PIPE TO TUBE.
What parts can replace B400-3-4TFT?
There are 2 known substitutes for B400-3-4TFT: 4-4-4MBZ-B, B4-3TFT-4. Substitute compatibility should be verified for your specific system.
What is the NSN for B400-3-4TFT?
B400-3-4TFT is cataloged in the U.S. Government catalog under NSN 4730-01-063-0340. This indicates validated use in U.S. government and defense supply chains.
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