PartsTable
Technical Data Sheet
PartsTable / MRO / 74139-1
74139-1 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include unit_design: FREE STANDING, overall_width: 2.000 INCHES NOMINAL IN, interface_type: RS 232C AND RS 422, overall_height: 0.750 INCHES NOMINAL IN, overall_length: 3.500 INCHES NOMINAL 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 4710-00-200-7280, 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
MRO→ MRO_GENERAL→ 74139-1
NSN: 4710-00-200-7280
FSC: 4710
CAGE: 21439 — CURTISS-WRIGHT FLOW CONTROL SERVICE, LLC DBA ENGINEERED ARRESTING SYSTEMS - ESCO DIV CW FLOW CONTROL SVC LLC DBA (USA)
SPECIFICATIONS
unit_designFREE STANDING
overall_width2.000 INCHES NOMINAL IN
interface_typeRS 232C AND RS 422
overall_height0.750 INCHES NOMINAL IN
overall_length3.500 INCHES NOMINAL IN
NSN4710-00-200-7280
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 74139-1 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD SIZE: 0.438 INCHES SINGLE END IN
•
MATING END QUANTITY: 2 SINGLE END
•
DESIGN FORM: PREBENT
•
MATERIAL: STEEL CORROSION RESISTING SINGLE END
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
•
SEAT ANGLE IN DEG: 12.0 SINGLE END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.438 INCHES SINGLE END IN
MATING END QUANTITY2 SINGLE END
DESIGN FORMPREBENT
MATERIALSTEEL CORROSION RESISTING SINGLE END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
MATING END QUANTITY2 SINGLE END
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) SINGLE END
SEAT ANGLE IN DEG12.0 SINGLE END
DESIGN FORMPREBENT
END CONNECTION SPEC/STDMIL,MS21921,P/N MS21921-4J,MS21922,P/N MS21922-4C
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
74139-1Interchangeable
interchangeable cross-reference
interchangeable
741389Interchangeable
interchangeable cross-reference
interchangeable
767207Interchangeable
interchangeable cross-reference
interchangeable
222NMInterchangeable
interchangeable cross-reference
interchangeable
D0603637Interchangeable
interchangeable cross-reference
interchangeable
222NInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74139-1?
74139-1 is a BEARING,BALL,ANNULAR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 74139-1?
There are 6 known substitutes for 74139-1: 74139-1, 741389, 767207 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74139-1?
74139-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-00-200-7280. 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