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5D3-03871-85 — CONNECTOR,MULTIPLE,FLUID PRESSUR

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

5D3-03871-85: CONNECTOR,MULTIPLE,FLUID PRESSUR.

CONNECTOR,MULTIPLE,FLUID PRESSUR. Key specifications include material: STEEL CORROSION RESISTING, thickness: 2.750 INCHES NOMINAL IN, overall_width: 2.938 INCHES NOMINAL IN, overall_length: 6.875 INCHES NOMINAL IN, style_designator: 3 FLUID CONNECTIONS, bolt_hole_diameter: 0.850 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-409-0109, 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
5D3-03871-85
NSN: 4730-01-409-0109
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thickness2.750 INCHES NOMINAL IN
overall_width2.938 INCHES NOMINAL IN
overall_length6.875 INCHES NOMINAL IN
style_designator3 FLUID CONNECTIONS
bolt_hole_diameter0.850 INCHES NOMINAL IN
end_item_identificationCAPSTAN ASSEMBLY
fluid_connection_quantity3 LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-409-0109
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5D3-03871-85 · 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
•
STYLE DESIGNATOR: 3 FLUID CONNECTIONS
•
FLUID CONNECTION QUANTITY: 3 LOCATION NOT OTHERWISE SPECIFIED
•
BOLT HOLE DIAMETER: 0.850 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
•
THICKNESS: 2.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATOR3 FLUID CONNECTIONS
FLUID CONNECTION QUANTITY3 LOCATION NOT OTHERWISE SPECIFIED
BOLT HOLE DIAMETER0.850 INCHES NOMINAL IN
OVERALL LENGTH6.875 INCHES NOMINAL IN
OVERALL WIDTH2.938 INCHES NOMINAL IN
END ITEM IDENTIFICATIONCAPSTAN ASSEMBLY
MATERIALSTEEL CORROSION RESISTING
THICKNESS2.750 INCHES NOMINAL 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 5D3-03871-85?
5D3-03871-85 is a CONNECTOR,MULTIPLE,FLUID PRESSUR.
What is the NSN for 5D3-03871-85?
5D3-03871-85 is cataloged in the U.S. Government catalog under NSN 4730-01-409-0109. 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.