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Technical Data Sheet
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3176834 — ADAPTER,STRAIGHT,FLANGE TO HOSE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3176834: ADAPTER,STRAIGHT,FLANGE TO HOSE.

ADAPTER,STRAIGHT,FLANGE TO HOSE. Key specifications include connection_type: FLANGE FIRST END, connection_style: PLAIN (HOSE) SECOND END, flange_face_design: PLAIN FIRST END, bolt_hole_nominal_diameter: 0.375 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-312-5726, 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
3176834
NSN: 4730-01-312-5726
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
connection_typeFLANGE FIRST END
connection_stylePLAIN (HOSE) SECOND END
flange_face_designPLAIN FIRST END
bolt_hole_nominal_diameter0.375 INCHES FIRST END IN
NSN4730-01-312-5726
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3176834 · 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 FACE DESIGN: PLAIN FIRST END
•
CONNECTION STYLE: PLAIN (HOSE) SECOND END
•
CONNECTION TYPE: UNTHREADED EXTERNAL HOSE SECOND END
•
BOLT HOLE NOMINAL DIAMETER: 0.375 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
FLANGE FACE DESIGNPLAIN FIRST END
CONNECTION STYLEPLAIN (HOSE) SECOND END
CONNECTION TYPEUNTHREADED EXTERNAL HOSE SECOND END
CONNECTION TYPEFLANGE FIRST END
BOLT HOLE NOMINAL DIAMETER0.375 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 3176834?
3176834 is a ADAPTER,STRAIGHT,FLANGE TO HOSE.
What is the NSN for 3176834?
3176834 is cataloged in the U.S. Government catalog under NSN 4730-01-312-5726. 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.