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Technical Data Sheet
PartsTable / COMPONENT / 3861T53
3861T53 ✓ 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 is a the manufacturer industrial component. Key specifications include material: ALUMINUM OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, nominal_thread_size: 0.375 INCHES ALL ENDS IN, thread_series_designator: NPT ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-243-3486, 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
3861T53
NSN: 4730-01-243-3486
FSC: 4730
CAGE: 0KVE6 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialALUMINUM OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
nominal_thread_size0.375 INCHES ALL ENDS IN
thread_series_designatorNPT ALL ENDS
NSN4730-01-243-3486
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3861T53 · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
MATERIAL: ALUMINUM OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
MATERIALALUMINUM OVERALL
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
154889Interchangeable
interchangeable cross-reference
interchangeable
610.109-LInterchangeable
interchangeable cross-reference
interchangeable
154883Interchangeable
interchangeable cross-reference
interchangeable
154887Interchangeable
interchangeable cross-reference
interchangeable
154886Interchangeable
interchangeable cross-reference
interchangeable
3861T83Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3861T53?
3861T53 is a TEE,PIPE.
What parts can replace 3861T53?
There are 6 known substitutes for 3861T53: 154889, 610.109-L, 154883 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3861T53?
3861T53 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-243-3486. 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