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5L1723 — ELBOW,FLANGE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5L1723: ELBOW,FLANGE.

The ELBOW,FLANGE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, flow_angle: 90.0 DEGREES, leg_length: 6.625 INCHES NOMINAL SECOND END IN, flange_shape: RECTANGULAR WITH HOLES SECOND END, nominal_width: 3.625 INCHES FIRST END IN, nominal_length: 3.625 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-128-7218, 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
5L1723
NSN: 4730-00-128-7218
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialIRON OVERALL
flow_angle90.0 DEGREES
leg_length6.625 INCHES NOMINAL SECOND END IN
flange_shapeRECTANGULAR WITH HOLES SECOND END
nominal_width3.625 INCHES FIRST END IN
nominal_length3.625 INCHES FIRST END IN
nominal_thickness0.380 INCHES FIRST END IN
bolt_hole_quantity4 SECOND END
flange_face_designPLAIN SECOND END
bolt_hole_nominal_diameter0.531 INCHES FIRST END IN
center_to_center_nominal_distance_between_bolt_holes_along_width2.625 INCHES FIRST END IN
center_to_center_nominal_distance_between_bolt_holes_along_length2.625 INCHES FIRST END IN
NSN4730-00-128-7218
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5L1723 · 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: RECTANGULAR WITH HOLES SECOND END
•
FLOW ANGLE: 90.0 DEGREES
•
FLANGE FACE DESIGN: PLAIN FIRST END
•
NOMINAL LENGTH: 3.500 INCHES SECOND END IN
•
BOLT HOLE NOMINAL DIAMETER: 0.406 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS
FLANGE SHAPERECTANGULAR WITH HOLES SECOND END
FLANGE SHAPERECTANGULAR WITH HOLES FIRST END
FLOW ANGLE90.0 DEGREES
FLANGE FACE DESIGNPLAIN FIRST END
FLANGE FACE DESIGNPLAIN SECOND END
NOMINAL LENGTH3.500 INCHES SECOND END IN
NOMINAL LENGTH3.625 INCHES FIRST END IN
BOLT HOLE NOMINAL DIAMETER0.406 INCHES SECOND END IN
BOLT HOLE NOMINAL DIAMETER0.531 INCHES FIRST END IN
LEG LENGTH1.500 INCHES NOMINAL 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 1
5121723Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 5L1723?
5L1723 is a ELBOW,FLANGE.
What parts can replace 5L1723?
There is 1 known substitute for 5L1723: 5121723. Substitute compatibility should be verified for your specific system.
What is the NSN for 5L1723?
5L1723 is cataloged in the U.S. Government catalog under NSN 4730-00-128-7218. 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.