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1741AS380 — COUPLING,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1741AS380: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, flange_shape: ROUND WITH HOLES ALL ENDS, connection_type: FLANGE ALL ENDS, style_designator: GROOVED BOTH ENDS, nominal_thickness: 1.370 INCHES SECOND END IN, bolt_hole_quantity: 12 FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-436-2126, 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
1741AS380
NSN: 4730-01-436-2126
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_shapeROUND WITH HOLES ALL ENDS
connection_typeFLANGE ALL ENDS
style_designatorGROOVED BOTH ENDS
nominal_thickness1.370 INCHES SECOND END IN
bolt_hole_quantity12 FIRST END
flange_face_designPLAIN ALL ENDS
nominal_overall_length8.800 INCHES IN
end_item_identificationSALVAGE
nominal_outside_diameter6.500 INCHES SECOND END IN
bolt_hole_nominal_diameter0.578 INCHES SECOND END IN
bolt_circle_nominal_diameter7.220 INCHES FIRST END IN
NSN4730-01-436-2126
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1741AS380 · 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
•
FLANGE SHAPE: ROUND WITH HOLES ALL ENDS
•
FLANGE FACE DESIGN: PLAIN ALL ENDS
•
BOLT CIRCLE NOMINAL DIAMETER: 6.450 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 8.800 INCHES IN
•
CONNECTION TYPE: FLANGE ALL ENDS
•
STYLE DESIGNATOR: GROOVED BOTH ENDS
•
BOLT HOLE NOMINAL DIAMETER: 0.578 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPEROUND WITH HOLES ALL ENDS
FLANGE FACE DESIGNPLAIN ALL ENDS
BOLT CIRCLE NOMINAL DIAMETER6.450 INCHES SECOND END IN
BOLT CIRCLE NOMINAL DIAMETER7.220 INCHES FIRST END IN
NOMINAL OVERALL LENGTH8.800 INCHES IN
CONNECTION TYPEFLANGE ALL ENDS
STYLE DESIGNATORGROOVED BOTH ENDS
BOLT HOLE NOMINAL DIAMETER0.578 INCHES SECOND END IN
BOLT HOLE NOMINAL DIAMETER0.469 INCHES FIRST END IN
NOMINAL OUTSIDE DIAMETER6.500 INCHES SECOND 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1741AS380?
1741AS380 is a COUPLING,TUBE.
What is the NSN for 1741AS380?
1741AS380 is cataloged in the U.S. Government catalog under NSN 4730-01-436-2126. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.