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903145 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

903145: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEAL, bore_shape: STRAIGHT, bore_diameter: 25.00 MILLIMETERS NOMINAL MM, overall_width: 17.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 5331-00-112-1368, 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
903145
NSN: 5331-00-112-1368
NIINs: 001121368, 004182520
FSC: 5331 — O-ring
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEAL
bore_shapeSTRAIGHT
bore_diameter25.00 MILLIMETERS NOMINAL MM
overall_width17.0 MILLIMETERS NOMINAL MM
seal_quantity1
load_directionRADIAL
surface_finishGROUND
special_featuresCERTIFIED FREE FROM MERCURY CONTAMINATION
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
bearing_seal_typeCONTACT
overall_outside_diameter62.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
NSN5331-00-112-1368
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 903145 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 5.461 INCHES MINIMUM AND 5.507 INCHES MAXIMUM IN
•
MATERIAL: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
CENTER HOLE DIAMETER5.461 INCHES MINIMUM AND 5.507 INCHES MAXIMUM IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
SUBSTITUTES & CROSS-REFERENCES 2
701948Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
150321-144Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 903145?
903145 is a BEARING,BALL,ANNULAR.
What parts can replace 903145?
There are 2 known substitutes for 903145: 701948, 150321-144. Substitute compatibility should be verified for your specific system.
What is the NSN for 903145?
903145 is cataloged in the U.S. Government catalog under NSN 5331-00-112-1368. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.