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50A4478 — SWITCH,RADIO FREQUENCY TRANSMISS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

50A4478: SWITCH,RADIO FREQUENCY TRANSMISS.

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include material: STEEL OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, surface_treatment: ZINC OVERALL, nominal_thread_size: 0.750 INCHES ALL ENDS IN, nominal_overall_length: 3.000 INCHES IN, thread_series_designator: NPT ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-196-1498, 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
50A4478
NSN: 4730-00-196-1498
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81240 — WHITE FARM EQUIPMENT CO SUB OF TIC INVESTMENT INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
surface_treatmentZINC OVERALL
nominal_thread_size0.750 INCHES ALL ENDS IN
nominal_overall_length3.000 INCHES IN
thread_series_designatorNPT ALL ENDS
material_document_and_classificationASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN4730-00-196-1498
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 50A4478 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.750 INCHES ALL ENDS IN
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NOMINAL OVERALL LENGTH3.000 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.750 INCHES ALL ENDS IN
SURFACE TREATMENTZINC OVERALL
MATERIALSTEEL OVERALL
THREAD SERIES DESIGNATORNPT ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 9
55145Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
BM11359-01B03Reference document
Same NSN cross-reference
Reference document — Secondary reference
0001273Reference document
Same NSN cross-reference
Reference document — Secondary reference
25934Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
0001265Reference document
Same NSN cross-reference
Reference document — Secondary reference
3-4X3INCHReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 50A4478?
50A4478 is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace 50A4478?
There are 9 known substitutes for 50A4478: 55145, BM11359-01B03, 0001273 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 50A4478?
50A4478 is cataloged in the U.S. Government catalog under NSN 4730-00-196-1498. 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.