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A339 ✓ 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 BODY,RECEPTACLE,ELECTR. Key specifications include material: STEEL, body_style: STRAIGHT SHAPE, shell_type: SOLID, body_length: 2.031 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, overall_width: 0.688 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-146-6033, 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
A339
NSN: 4730-00-146-6033
FSC: 4730
CAGE: 24658 — GENERAL REGULATOR CORP. DBA ACCUDRIV (USA)
SPECIFICATIONS
materialSTEEL
body_styleSTRAIGHT SHAPE
shell_typeSOLID
body_length2.031 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
overall_width0.688 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE PRIMARY
coil_form_typeHOLLOW SINGLE COMPONENT
inclosure_typeOPEN
overall_height0.938 INCHES NOMINAL IN
overall_length3.000 INCHES NOMINAL IN
shell_materialALUMINUM ALLOY
NSN4730-00-146-6033
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: A339 · 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
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
MATERIAL: COPPER ALLOY OVERALL
•
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED: 0.187 INCHES SECOND END IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
•
CONNECTION STYLE: BARBED OR BEADED (HOSE) SECOND END
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONTOOL CALIBRATOR/FOSTER WHEELER CORP
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
MATERIALCOPPER ALLOY OVERALL
NOMINAL INSIDE DIAMETER HOSE ACCOMMODATED0.187 INCHES SECOND END IN
THREAD SERIES DESIGNATORNPT FIRST END
CONNECTION STYLEBARBED OR BEADED (HOSE) SECOND END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
A339Interchangeable
interchangeable cross-reference
interchangeable
321GXInterchangeable
interchangeable cross-reference
interchangeable
18843FXInterchangeable
interchangeable cross-reference
interchangeable
118757Interchangeable
interchangeable cross-reference
interchangeable
391109-1Interchangeable
interchangeable cross-reference
interchangeable
391109Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A339?
A339 is a CONNECTOR BODY,RECEPTACLE,ELECTR.
What parts can replace A339?
There are 15 known substitutes for A339: A339, 321GX, 18843FX and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A339?
A339 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-146-6033. 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