PartsTable
Technical Data Sheet
1901K62 ✓ 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 TEE,PIPE TO BOSS is a the manufacturer industrial component. Key specifications include connection_type: UNTHREADED EXTERNAL PIPE SECOND END, connection_style: GROOVED (PIPE) SECOND END, special_features: ALL O-RING SEALS SHALL BE MADE OF NITRILE MATERIAL COMPOUND FOR LOW TEMPERATURE OPERATION IAW MIL-P-83461 OR MIL-P-25732, nominal_thread_size: 0.438 INCHES SECOND END IN, end_item_identification: 2320013833850, thread_series_designator: NPT THIRD END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-413-2599, 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
1901K62
NSN: 4730-01-413-2599
FSC: 4730
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
connection_typeUNTHREADED EXTERNAL PIPE SECOND END
connection_styleGROOVED (PIPE) SECOND END
special_featuresALL O-RING SEALS SHALL BE MADE OF NITRILE MATERIAL COMPOUND FOR LOW TEMPERATURE OPERATION IAW MIL-P-83461 OR MIL-P-25732
nominal_thread_size0.438 INCHES SECOND END IN
end_item_identification2320013833850
thread_series_designatorNPT THIRD END
nominal_pipe_size_accommodated0.250 INCHES FIRST END IN
NSN4730-01-413-2599
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1901K62 · 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: 0.438 INCHES SECOND END IN
CONNECTION TYPE: UNTHREADED EXTERNAL PIPE FIRST END
CONNECTION STYLE: GROOVED (PIPE) FIRST END
THREAD SERIES DESIGNATOR: NPT THIRD END
NOMINAL PIPE SIZE ACCOMMODATED: 0.250 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESALL O-RING SEALS SHALL BE MADE OF NITRILE MATERIAL COMPOUND FOR LOW TEMPERATURE OPERATION IAW MIL-P-83461 OR MIL-P-25732
NOMINAL THREAD SIZE0.438 INCHES SECOND END IN
CONNECTION TYPEUNTHREADED EXTERNAL PIPE FIRST END
CONNECTION STYLEGROOVED (PIPE) FIRST END
CONNECTION TYPEUNTHREADED EXTERNAL PIPE SECOND END
THREAD SERIES DESIGNATORNPT THIRD END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES FIRST END IN
CONNECTION STYLEGROOVED (PIPE) SECOND END
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION TYPETHREADED EXTERNAL BOSS THIRD END
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
11642Interchangeable
interchangeable cross-reference
interchangeable
396303-1Interchangeable
interchangeable cross-reference
interchangeable
211642Interchangeable
interchangeable cross-reference
interchangeable
631LXInterchangeable
interchangeable cross-reference
interchangeable
57379Interchangeable
interchangeable cross-reference
interchangeable
8165Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1901K62?
1901K62 is a TEE,PIPE TO BOSS.
What parts can replace 1901K62?
There are 16 known substitutes for 1901K62: 11642, 396303-1, 211642 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1901K62?
1901K62 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-413-2599. This indicates validated use in U.S. government and defense supply chains.
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