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SS-400-R-4 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SS-400-R-4: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, seat_angle: 20.0 DEGREES FIRST END, thread_class: 3A FIRST END A, connection_type: UNTHREADED EXTERNAL TUBE SECOND END, connection_style: GROOVED (TUBE) SECOND END, style_designator: THREADED AND PLAIN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-282-8490, 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
SS-400-R-4
NSN: 4730-01-282-8490
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 3T9T9 — SWAGELOK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
seat_angle20.0 DEGREES FIRST END
thread_class3A FIRST END A
connection_typeUNTHREADED EXTERNAL TUBE SECOND END
connection_styleGROOVED (TUBE) SECOND END
style_designatorTHREADED AND PLAIN
nominal_thread_size0.438 INCHES FIRST END IN
nominal_overall_length1.540 INCHES IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 SHORT COUPLING NUT AND 2 FERRULE SLEEVE
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-282-8490
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS-400-R-4 · 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: 1 SHORT COUPLING NUT AND 2 FERRULE SLEEVE
•
CONNECTION STYLE: GROOVED (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.540 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
STYLE DESIGNATOR: THREADED AND PLAIN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 SHORT COUPLING NUT AND 2 FERRULE SLEEVE
CONNECTION STYLEGROOVED (TUBE) SECOND END
CONNECTION STYLEFLARELESS (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.540 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL TUBE SECOND END
STYLE DESIGNATORTHREADED AND PLAIN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES SECOND END IN
NOMINAL THREAD SIZE0.438 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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SS-400-R-4?
SS-400-R-4 is a COUPLING,TUBE.
What is the NSN for SS-400-R-4?
SS-400-R-4 is cataloged in the U.S. Government catalog under NSN 4730-01-282-8490. This indicates validated use in U.S. government and defense supply chains.
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