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03J50 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

HARNESS,SAFETY,PERSONNEL,HOISTIN. Key specifications include material: COPPER ALLOY 903, thickness: 0.438 INCHES NOMINAL IN, flange_diameter: 3.375 INCHES NOMINAL IN, special_features: DESIGNED FOR WATER MEDIA, bolt_hole_diameter: 0.500 INCHES NOMINAL IN, face_seating_surface_condition: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-967-4205, 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
03J50
NSN: 4730-00-967-4205
FSC: 4730
CAGE: 43689 — HUNTINGTON INGALLS INC DIV NEWPORT NEWS SHIPBUILDING (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903
thickness0.438 INCHES NOMINAL IN
flange_diameter3.375 INCHES NOMINAL IN
special_featuresDESIGNED FOR WATER MEDIA
bolt_hole_diameter0.500 INCHES NOMINAL IN
bolt_hole_quantity4
face_seating_surface_conditionGROUND
material_document_and_classificationQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
NSN4730-00-967-4205
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 03J50 · 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
•
BOLT HOLE DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
•
THICKNESS: 0.438 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 4
•
FLANGE DIAMETER: 3.375 INCHES NOMINAL IN
•
FACE SEATING SURFACE CONDITION: GROUND
•
MATERIAL: COPPER ALLOY 903
TECHNICAL CHARACTERISTICS (FLIS)
BOLT HOLE DIAMETER0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,ALLOY D5 FED SPEC SINGLE MATERIAL RESPONSE
THICKNESS0.438 INCHES NOMINAL IN
BOLT HOLE QUANTITY4
FLANGE DIAMETER3.375 INCHES NOMINAL IN
SPECIAL FEATURESDESIGNED FOR WATER MEDIA
FACE SEATING SURFACE CONDITIONGROUND
MATERIALCOPPER ALLOY 903
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
20217-4Interchangeable
interchangeable cross-reference
interchangeable
695805-1Interchangeable
interchangeable cross-reference
interchangeable
137746Interchangeable
interchangeable cross-reference
interchangeable
44-1-16-0Interchangeable
interchangeable cross-reference
interchangeable
12J50Interchangeable
interchangeable cross-reference
interchangeable
202174PCJ5054Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 03J50?
03J50 is a HARNESS,SAFETY,PERSONNEL,HOISTIN.
What parts can replace 03J50?
There are 19 known substitutes for 03J50: 20217-4, 695805-1, 137746 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 03J50?
03J50 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-967-4205. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026