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1854779 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

1854779: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 903 OVERALL, corner_shape: SQUARE OUTSIDE RIGHT CORNER, flange_width: 0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_length: 1.6130 INCHES MINIMUM AND 1.6270 INCHES MAXIMUM IN, surface_finish: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, EXTERNAL FLANGE ONE END. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-252-1860, 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
1854779
NSN: 3120-00-252-1860
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 03956 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY 903 OVERALL
corner_shapeSQUARE OUTSIDE RIGHT CORNER
flange_width0.2400 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_length1.6130 INCHES MINIMUM AND 1.6270 INCHES MAXIMUM IN
surface_finish32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter3.0010 INCHES MINIMUM AND 3.0020 INCHES MAXIMUM IN
body_outside_diameter3.7485 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
flange_outside_diameter4.7400 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN
material_document_and_classificationASTM B143 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
antirotation/lubrication_type_and_quantity14 HOLE
NSN3120-00-252-1860
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 1854779 · 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
•
SURFACE FINISH: 32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
SURFACE FINISH32.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
CORNER SHAPESQUARE INSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE INSIDE LEFT CORNER
FLANGE OUTSIDE DIAMETER4.7400 INCHES MINIMUM AND 4.7500 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER3.7485 INCHES MINIMUM AND 3.7500 INCHES MAXIMUM IN
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: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1854779?
1854779 is a BUSHING,SLEEVE.
What is the NSN for 1854779?
1854779 is cataloged in the U.S. Government catalog under NSN 3120-00-252-1860. 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.