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2BA539 ✓ 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

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_type: SOLID, thread_class: 2A EXTERNAL A, drive_end_style: RECESSED HEXAGON, connection_style: PLAIN, thread_direction: RIGHT-HAND EXTERNAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-017-4816, 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
2BA539
NSN: 4730-01-017-4816
FSC: 4730
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
thread_class2A EXTERNAL A
drive_end_styleRECESSED HEXAGON
connection_stylePLAIN
thread_directionRIGHT-HAND EXTERNAL
nominal_thread_size0.375 INCHES EXTERNAL IN
thread_quantity_per_inch18 EXTERNAL
thread_series_designatorNPT EXTERNAL
nominal_pipe_size_for_which_designed0.375 INCHES IN
NSN4730-01-017-4816
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2BA539 · 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
•
THREAD CLASS: 2A EXTERNAL A
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.375 INCHES IN
•
BODY TYPE: SOLID
•
THREAD SERIES DESIGNATOR: NPT EXTERNAL
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
DRIVE END STYLE: RECESSED HEXAGON
•
MATERIAL: STEEL OVERALL
•
THREAD QUANTITY PER INCH: 18 EXTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2A EXTERNAL A
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.375 INCHES IN
BODY TYPESOLID
THREAD SERIES DESIGNATORNPT EXTERNAL
THREAD DIRECTIONRIGHT-HAND EXTERNAL
DRIVE END STYLERECESSED HEXAGON
MATERIALSTEEL OVERALL
THREAD QUANTITY PER INCH18 EXTERNAL
NOMINAL THREAD SIZE0.375 INCHES EXTERNAL IN
CONNECTION STYLEPLAIN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
DS-934266Interchangeable
interchangeable cross-reference
interchangeable
4759Interchangeable
interchangeable cross-reference
interchangeable
94880Interchangeable
interchangeable cross-reference
interchangeable
A5000Interchangeable
interchangeable cross-reference
interchangeable
122-6722635 PC 37Interchangeable
interchangeable cross-reference
interchangeable
191758Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2BA539?
2BA539 is a RELAY,ELECTROMAGNETIC.
What parts can replace 2BA539?
There are 23 known substitutes for 2BA539: DS-934266, 4759, 94880 and 20 more. Substitute compatibility should be verified for your specific system.
Is 2BA539 still available?
2BA539 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