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Technical Data Sheet
PartsTable / COMPONENT / 502-0020-01
502-0020-01 ✓ 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

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include tube_type: CATHODE RAY, nondefinitive_spec/std_data: 7Y+7 TYPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-639-9730, 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
502-0020-01
NSN: 4730-00-639-9730
FSC: 4730
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
tube_typeCATHODE RAY
nondefinitive_spec/std_data7Y+7 TYPE
NSN4730-00-639-9730
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 502-0020-01 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
502-20Interchangeable
interchangeable cross-reference
interchangeable
502-0020Interchangeable
interchangeable cross-reference
interchangeable
0771-7Interchangeable
interchangeable cross-reference
interchangeable
2151000044Interchangeable
interchangeable cross-reference
interchangeable
MS15795-905Interchangeable
interchangeable cross-reference
interchangeable
50A2481Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 502-0020-01?
502-0020-01 is a CONNECTOR,RECEPTACLE,ELECTRICAL.
What parts can replace 502-0020-01?
There are 28 known substitutes for 502-0020-01: 502-20, 502-0020, 0771-7 and 25 more. Substitute compatibility should be verified for your specific system.
Is 502-0020-01 still available?
502-0020-01 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026