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Technical Data Sheet
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3S1796 — ELBOW,FLANGE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3S1796: ELBOW,FLANGE TO HOSE.

The ELBOW,FLANGE TO HOSE is a the manufacturer industrial component. Key specifications include flange_shape: RECTANGULAR WITH HOLES FIRST END, connection_type: UNTHREADED EXTERNAL HOSE SECOND END, bolt_hole_quantity: 4 FIRST END, bolt_hole_nominal_diameter: 0.156 INCHES FIRST END IN, bolt_circle_nominal_diameter: 2.750 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-409-3870, 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
3S1796
NSN: 4730-00-409-3870
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
flange_shapeRECTANGULAR WITH HOLES FIRST END
connection_typeUNTHREADED EXTERNAL HOSE SECOND END
bolt_hole_quantity4 FIRST END
bolt_hole_nominal_diameter0.156 INCHES FIRST END IN
bolt_circle_nominal_diameter2.750 INCHES FIRST END IN
NSN4730-00-409-3870
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3S1796 · 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 FIRST END
•
BOLT CIRCLE NOMINAL DIAMETER: 2.750 INCHES FIRST END IN
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE SECOND END
•
BOLT HOLE NOMINAL DIAMETER: 0.156 INCHES FIRST END IN
•
BOLT HOLE QUANTITY: 4 FIRST END
TECHNICAL CHARACTERISTICS
FLANGE SHAPERECTANGULAR WITH HOLES FIRST END
BOLT CIRCLE NOMINAL DIAMETER2.750 INCHES FIRST END IN
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
CONNECTION TYPEFLANGE FIRST END
BOLT HOLE NOMINAL DIAMETER0.156 INCHES FIRST END IN
BOLT HOLE QUANTITY4 FIRST END
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 3S1796?
3S1796 is a ELBOW,FLANGE TO HOSE.
What is the NSN for 3S1796?
3S1796 is cataloged in the U.S. Government catalog under NSN 4730-00-409-3870. 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.