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255073B — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

255073B: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1010 OR STEEL COMP 1015 OUTER LAYER, corner_shape: CHAMFERED INSIDE LEFT CORNER, hole_diameter: 0.3281 INCHES NOMINAL FIRST IN, overall_length: 1.0520 INCHES MINIMUM AND 1.0720 INCHES MAXIMUM IN, style_designator: SPLIT, PLAIN, NO OUTSIDE FLANGES, surface_treatment: TIN OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-678-6087, 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
255073B
NSN: 3120-00-678-6087
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
materialSTEEL COMP 1010 OR STEEL COMP 1015 OUTER LAYER
corner_shapeCHAMFERED INSIDE LEFT CORNER
hole_diameter0.3281 INCHES NOMINAL FIRST IN
overall_length1.0520 INCHES MINIMUM AND 1.0720 INCHES MAXIMUM IN
style_designatorSPLIT, PLAIN, NO OUTSIDE FLANGES
surface_treatmentTIN OVERALL
body_inside_diameter2.0540 INCHES MINIMUM AND 2.0560 INCHES MAXIMUM IN
body_outside_diameter2.1900 INCHES MINIMUM AND 2.1920 INCHES MAXIMUM IN
antirotation/lubrication_type_and_quantity2 HOLE
NSN3120-00-678-6087
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 255073B · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CORNER SHAPE: CHAMFERED INSIDE LEFT CORNER
•
BODY OUTSIDE DIAMETER: 2.1900 INCHES MINIMUM AND 2.1920 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPLIT, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 2.0540 INCHES MINIMUM AND 2.0560 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPECHAMFERED INSIDE LEFT CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPECHAMFERED INSIDE RIGHT CORNER
BODY OUTSIDE DIAMETER2.1900 INCHES MINIMUM AND 2.1920 INCHES MAXIMUM IN
STYLE DESIGNATORSPLIT, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.0520 INCHES MINIMUM AND 1.0720 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.0540 INCHES MINIMUM AND 2.0560 INCHES MAXIMUM IN
SURFACE TREATMENTTIN OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
SUBSTITUTES & CROSS-REFERENCES 2
667391Reference document
Same NSN cross-reference
Reference document — Secondary reference
P1091Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 255073B?
255073B is a BEARING,SLEEVE.
What parts can replace 255073B?
There are 2 known substitutes for 255073B: 667391, P1091. Substitute compatibility should be verified for your specific system.
What is the NSN for 255073B?
255073B is cataloged in the U.S. Government catalog under NSN 3120-00-678-6087. 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.