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Technical Data Sheet
PartsTable / COMPONENT / 339-1/2X3
339-1/2X3 ✓ 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 339-1/2X3 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-188-1880, 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
339-1/2X3
NSN: 4730-00-188-1880
FSC: 4730
CAGE: 80996 — ITT GRINNELL CORP (USA)
SPECIFICATIONS
Part Number339-1/2X3
NSN4730-00-188-1880
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 339-1/2X3 · 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: 0.500 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: LONG
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORLONG
NOMINAL OVERALL LENGTH3.000 INCHES IN
NOMINAL OVERALL LENGTH3.000 INCHES IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA81346-ASTM A733 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51953 GOVERNMENT STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
01845-1280Interchangeable
interchangeable cross-reference
interchangeable
5429Interchangeable
interchangeable cross-reference
interchangeable
209943Interchangeable
interchangeable cross-reference
interchangeable
5429-9Interchangeable
interchangeable cross-reference
interchangeable
429Interchangeable
interchangeable cross-reference
interchangeable
ASO-277-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 339-1/2X3?
339-1/2X3 is a 339-1/2X3.
What parts can replace 339-1/2X3?
There are 19 known substitutes for 339-1/2X3: 01845-1280, 5429, 209943 and 16 more. Substitute compatibility should be verified for your specific system.
Is 339-1/2X3 still available?
339-1/2X3 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