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403770 — ELBOW,FLANGE TO BOSS

✓ Government record, cited
Legrand · HOSE FITTING
PRODUCT OVERVIEW

403770: ELBOW,FLANGE TO BOSS.

The ELBOW,FLANGE TO BOSS is a Legrand industrial component. Key specifications include material: ALUMINUM ALLOY OVERALLUNABLE TO DECODE, flow_angle: 90.0 DEGREES, leg_length: 1.965 INCHES NOMINAL SECOND END IN, flange_shape: TRIANGULAR WITH HOLES FIRST END, nominal_width: 2.624 INCHES FIRST END IN, nominal_length: 2.524 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-804-5614, 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
403770
NSN: 4730-00-804-5614
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALLUNABLE TO DECODE
flow_angle90.0 DEGREES
leg_length1.965 INCHES NOMINAL SECOND END IN
flange_shapeTRIANGULAR WITH HOLES FIRST END
nominal_width2.624 INCHES FIRST END IN
nominal_length2.524 INCHES FIRST END IN
connection_typeFLANGE FIRST END
connection_styleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
nominal_thickness0.200 INCHES FIRST END IN
bolt_hole_quantity3 FIRST END
flange_face_designRAISED STRAIGHT FIRST END
nominal_thread_size1.500 INCHES SECOND END IN
NSN4730-00-804-5614
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 403770 · Legrand ⚠ 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: TRIANGULAR WITH HOLES FIRST END
•
FLOW ANGLE: 90.0 DEGREES
•
FLANGE FACE DESIGN: RAISED STRAIGHT FIRST END
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
•
NOMINAL LENGTH: 2.524 INCHES FIRST END IN
•
BOLT CIRCLE NOMINAL DIAMETER: 2.580 INCHES FIRST END IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS SECOND END
TECHNICAL CHARACTERISTICS
FLANGE SHAPETRIANGULAR WITH HOLES FIRST END
FLOW ANGLE90.0 DEGREES
FLANGE FACE DESIGNRAISED STRAIGHT FIRST END
CONNECTION STYLEEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
NOMINAL LENGTH2.524 INCHES FIRST END IN
BOLT CIRCLE NOMINAL DIAMETER2.580 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL BOSS SECOND END
CONNECTION TYPEFLANGE FIRST END
THREAD PITCH DIAMETERS+1.3878 TO 1.4900 INCHES SECOND END IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4135 ASSN STD SINGLE MATERIAL RESPONSE OVERALLUNABLE TO DECODE
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 403770?
403770 is a ELBOW,FLANGE TO BOSS manufactured by Legrand.
What is the NSN for 403770?
403770 is cataloged in the U.S. Government catalog under NSN 4730-00-804-5614. This indicates validated use in U.S. government and defense supply chains.
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