PartsTable
Technical Data Sheet
4-8-010105B ✓ 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 REDUCER,TUBE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, reducer_type: CONCENTRIC, thread_class: 3A SECOND END A, connection_type: THREADED INTERNAL TUBE FIRST END, connection_style: DOUBLE COMPRESSION (TUBE) FIRST END, nominal_thread_size: 0.750 INCHES FIRST 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 4730-00-595-2762, 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
4-8-010105B
NSN: 4730-00-595-2762
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
reducer_typeCONCENTRIC
thread_class3A SECOND END A
connection_typeTHREADED INTERNAL TUBE FIRST END
connection_styleDOUBLE COMPRESSION (TUBE) FIRST END
nominal_thread_size0.750 INCHES FIRST END IN
seat_nominal_radius0.062 INCHES SECOND END IN
nominal_overall_length1.375 INCHES IN
thread_series_designatorUNF ALL ENDS
nominal_outside_diameter_tube_accommodated0.250 INCHES SECOND END IN
NSN4730-00-595-2762
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4-8-010105B · 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: COPPER ALLOY OVERALL
CONNECTION STYLE: DOUBLE COMPRESSION (TUBE) FIRST END
CONNECTION TYPE: THREADED INTERNAL TUBE FIRST END
REDUCER TYPE: CONCENTRIC
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES SECOND END IN
THREAD CLASS: 3B FIRST END
SEAT NOMINAL RADIUS: 0.062 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALCOPPER ALLOY OVERALL
CONNECTION STYLEDOUBLE COMPRESSION (TUBE) FIRST END
CONNECTION STYLECOMPRESSION (TUBE) SECOND END
CONNECTION TYPETHREADED INTERNAL TUBE FIRST END
REDUCER TYPECONCENTRIC
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES SECOND END IN
THREAD CLASS3B FIRST END
SEAT NOMINAL RADIUS0.062 INCHES FIRST END IN
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.500 INCHES FIRST END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
MIL-T-16366Interchangeable
interchangeable cross-reference
interchangeable
AS7928Interchangeable
interchangeable cross-reference
interchangeable
MS21004-7Interchangeable
interchangeable cross-reference
interchangeable
A480Interchangeable
interchangeable cross-reference
interchangeable
MS21003-10Interchangeable
interchangeable cross-reference
interchangeable
FFT276Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-8-010105B?
4-8-010105B is a REDUCER,TUBE.
What parts can replace 4-8-010105B?
There are 24 known substitutes for 4-8-010105B: MIL-T-16366, AS7928, MS21004-7 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-8-010105B?
4-8-010105B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-595-2762. This indicates validated use in U.S. government and defense supply chains.
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