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S1139-1 — TEE,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

S1139-1: TEE,PIPE TO TUBE.

The TEE,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, leg_length: 0.719 INCHES NOMINAL FIRST END IN, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: COMPRESSION (TUBE) FIRST END, nominal_thread_size: 0.438 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-996-8317, 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
S1139-1
NSN: 4730-00-996-8317
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
leg_length0.719 INCHES NOMINAL FIRST END IN
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleCOMPRESSION (TUBE) FIRST END
nominal_thread_size0.438 INCHES FIRST END IN
seat_nominal_radius0.062 INCHES FIRST END IN
thread_series_designatorUNF FIRST END
nominal_pipe_size_accommodated0.125 INCHES SECOND END IN
nominal_outside_diameter_tube_accommodated0.250 INCHES THIRD END IN
NSN4730-00-996-8317
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: S1139-1 · 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 PIPE SIZE ACCOMMODATED: 0.125 INCHES SECOND END IN
•
CONNECTION STYLE: COMPRESSION (TUBE) FIRST END
•
SEAT NOMINAL RADIUS: 0.062 INCHES FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.125 INCHES SECOND END IN
CONNECTION STYLECOMPRESSION (TUBE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION STYLECOMPRESSION (TUBE) THIRD END
SEAT NOMINAL RADIUS0.062 INCHES FIRST END IN
SEAT NOMINAL RADIUS0.062 INCHES THIRD END IN
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
CONNECTION TYPETHREADED EXTERNAL TUBE THIRD END
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1139-1?
S1139-1 is a TEE,PIPE TO TUBE.
What is the NSN for S1139-1?
S1139-1 is cataloged in the U.S. Government catalog under NSN 4730-00-996-8317. This indicates validated use in U.S. government and defense supply chains.
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