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PartsTable / COMPONENT / 5021-75
5021-75 ✓ 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

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include end_item_identification: ACFT ENG TF30, criticality_code_justification: AGAV. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-415-3172, 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
5021-75
NSN: 4730-00-415-3172
FSC: 4730
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
end_item_identificationACFT ENG TF30
criticality_code_justificationAGAV
NSN4730-00-415-3172
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 5021-75 · 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 23
5100136Interchangeable
interchangeable cross-reference
interchangeable
207163Interchangeable
interchangeable cross-reference
interchangeable
BB56Interchangeable
interchangeable cross-reference
interchangeable
120BInterchangeable
interchangeable cross-reference
interchangeable
120-3Interchangeable
interchangeable cross-reference
interchangeable
2747Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5021-75?
5021-75 is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace 5021-75?
There are 23 known substitutes for 5021-75: 5100136, 207163, BB56 and 20 more. Substitute compatibility should be verified for your specific system.
Is 5021-75 still available?
5021-75 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