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4TMT2 — TEE,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

4TMT2: TEE,PIPE TO TUBE.

The TEE,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 260 OR COPPER ALLOY 360 OVERALL, leg_length: 0.781 INCHES NOMINAL SECOND END IN, seat_angle: 20.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) THIRD END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-055-8531, 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
4TMT2
NSN: 4730-01-055-8531
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
materialCOPPER ALLOY 260 OR COPPER ALLOY 360 OVERALL
leg_length0.781 INCHES NOMINAL SECOND END IN
seat_angle20.0 DEGREES FIRST END
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARELESS (TUBE) THIRD END
nominal_thread_size0.125 INCHES SECOND END IN
thread_series_designatorUNF THIRD END
furnished_items_and_quantity2 TUBE COUPLING INVERTED NUT AND 2 FERRULE SLEEVE
material_document_and_classificationQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
nominal_outside_diameter_tube_accommodated0.250 INCHES THIRD END IN
NSN4730-01-055-8531
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4TMT2 · 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 TUBE COUPLING INVERTED NUT AND 2 FERRULE SLEEVE
•
CONNECTION STYLE: FLARELESS (TUBE) THIRD END
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY2 TUBE COUPLING INVERTED NUT AND 2 FERRULE SLEEVE
CONNECTION STYLEFLARELESS (TUBE) THIRD END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC ALL MATERIAL RESPONSES OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES THIRD END IN
SUBSTITUTES & CROSS-REFERENCES 1
25-424Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4TMT2?
4TMT2 is a TEE,PIPE TO TUBE.
What parts can replace 4TMT2?
There is 1 known substitute for 4TMT2: 25-424. Substitute compatibility should be verified for your specific system.
What is the NSN for 4TMT2?
4TMT2 is cataloged in the U.S. Government catalog under NSN 4730-01-055-8531. This indicates validated use in U.S. government and defense supply chains.
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