PartsTable
Technical Data Sheet
Download PDF

12278978 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

12278978: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, corner_shape: ROUND ALL CORNERS, flange_width: 0.2400 INCHES NOMINAL IN, overall_length: 0.6250 INCHES NOMINAL IN, style_designator: BLANK, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.4062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-079-2966, 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
12278978
NSN: 3120-01-079-2966
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
corner_shapeROUND ALL CORNERS
flange_width0.2400 INCHES NOMINAL IN
overall_length0.6250 INCHES NOMINAL IN
style_designatorBLANK, EXTERNAL FLANGE ONE END
body_inside_diameter0.4062 INCHES NOMINAL IN
body_outside_diameter0.7498 INCHES NOMINAL IN
end_item_identificationM1
flange_outside_diameter0.9998 INCHES NOMINAL IN
NSN3120-01-079-2966
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 12278978 · 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: ROUND ALL CORNERS
•
FLANGE OUTSIDE DIAMETER: 0.9998 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 0.7498 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BLANK, EXTERNAL FLANGE ONE END
•
BODY INSIDE DIAMETER: 0.4062 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.2400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
CORNER SHAPEROUND ALL CORNERS
FLANGE OUTSIDE DIAMETER0.9998 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER0.7498 INCHES NOMINAL IN
STYLE DESIGNATORBLANK, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.6250 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.4062 INCHES NOMINAL IN
FLANGE WIDTH0.2400 INCHES NOMINAL IN
END ITEM IDENTIFICATIONM1
MATERIALSTEEL COMP 303 OVERALL
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
Ready to buy 12278978?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 12278978?
12278978 is a BUSHING,SLEEVE.
What is the NSN for 12278978?
12278978 is cataloged in the U.S. Government catalog under NSN 3120-01-079-2966. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 12278978

✓ 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.