PartsTable
Technical Data Sheet
2018-2-4S ✓ 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 ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_angle: 37.0 DEGREES FIRST END, thread_class: 2B FIRST END, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: PLAIN (PIPE) SECOND END, nominal_thread_size: 0.125 INCHES SECOND END 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 4730-01-331-2850, 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
2018-2-4S
NSN: 4730-01-331-2850
FSC: 4730
CAGE: 01276 — DANFOSS POWER SOLUTIONS II, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_angle37.0 DEGREES FIRST END
thread_class2B FIRST END
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_stylePLAIN (PIPE) SECOND END
nominal_thread_size0.125 INCHES SECOND END IN
nominal_overall_length1.300 INCHES IN
thread_series_designatorNPT SECOND END
nominal_outside_diameter_tube_accommodated0.250 INCHES FIRST END IN
NSN4730-01-331-2850
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2018-2-4S · 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
MATERIAL: STEEL OVERALL
THREAD CLASS: 2B FIRST END
NOMINAL OVERALL LENGTH: 1.300 INCHES IN
CONNECTION STYLE: SWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
NOMINAL THREAD SIZE: 0.438 INCHES FIRST END IN
THREAD SERIES DESIGNATOR: NPT SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
THREAD CLASS2B FIRST END
NOMINAL OVERALL LENGTH1.300 INCHES IN
CONNECTION STYLESWIVEL NUT, FLARE (TUBE) STYLE 3 OPTIONAL END FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
NOMINAL THREAD SIZE0.438 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES FIRST END IN
SEAT ANGLE37.0 DEGREES FIRST END
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
103708Interchangeable
interchangeable cross-reference
interchangeable
NM320Interchangeable
interchangeable cross-reference
interchangeable
SP-04Interchangeable
interchangeable cross-reference
interchangeable
NC9449926Interchangeable
interchangeable cross-reference
interchangeable
6053598Interchangeable
interchangeable cross-reference
interchangeable
88206-10Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2018-2-4S?
2018-2-4S is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What parts can replace 2018-2-4S?
There are 9 known substitutes for 2018-2-4S: 103708, NM320, SP-04 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2018-2-4S?
2018-2-4S is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-331-2850. This indicates validated use in U.S. government and defense supply chains.
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