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Technical Data Sheet
PartsTable / COMPONENT / 503-105
503-105 ✓ Verified by PartsTable
— · PIPE SECTION
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 color: RED, shape: SPHERICAL, weight: 30.0 GRAMS G, material: RUBBER SYNTHETIC TUBE, temp_rating: -29.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF, taper_length: 0.296 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-125-4474, 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
503-105
NSN: 4720-01-125-4474
FSC: 4720
CAGE: 72741 — DORMAN PRODUCTS, INC. DBA DORMAN (USA)
SPECIFICATIONS
colorRED
shapeSPHERICAL
weight30.0 GRAMS G
materialRUBBER SYNTHETIC TUBE
temp_rating-29.0 FAHRENHEIT AND 257.0 FAHRENHEIT SINGLE RESPONSE DEGF
taper_length0.296 INCHES NOMINAL IN
thread_class2A A
usage_designUSED IN DETERMINING WIND DIRECTION AND SPEED ALOFT
thread_length0.1015 INCHES IN
exterior_colorBLACK
overall_length0.750 INCHES NOMINAL IN
taper_locationEXTERNAL
NSN4720-01-125-4474
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: 503-105 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
175143Interchangeable
interchangeable cross-reference
interchangeable
B9AF10A303AInterchangeable
interchangeable cross-reference
interchangeable
Z99604Interchangeable
interchangeable cross-reference
interchangeable
1595500Interchangeable
interchangeable cross-reference
interchangeable
NW31841Interchangeable
interchangeable cross-reference
interchangeable
27003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503-105?
503-105 is a BEARING,BALL,ANNULAR.
What parts can replace 503-105?
There are 30 known substitutes for 503-105: 175143, B9AF10A303A, Z99604 and 27 more. Substitute compatibility should be verified for your specific system.
Is 503-105 still available?
503-105 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026