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8644805-1 — BEARING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

8644805-1: BEARING,SLEEVE.

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYVINYL CHLORIDE (PVC) INNER LAYER, corner_shape: SQUARE ALL CORNERS, overall_length: 1.0000 INCHES NOMINAL IN, body_inside_diameter: 1.0025 INCHES MINIMUM AND 1.0055 INCHES MAXIMUM IN, body_outside_diameter: 1.1255 INCHES MINIMUM AND 1.1275 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-283-9253, 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
8644805-1
NSN: 3120-01-283-9253
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 18894 — AIR ARMAMENT CENTER/ EN (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYVINYL CHLORIDE (PVC) INNER LAYER
corner_shapeSQUARE ALL CORNERS
overall_length1.0000 INCHES NOMINAL IN
body_inside_diameter1.0025 INCHES MINIMUM AND 1.0055 INCHES MAXIMUM IN
body_outside_diameter1.1255 INCHES MINIMUM AND 1.1275 INCHES MAXIMUM IN
NSN3120-01-283-9253
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 8644805-1 · 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: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 1.1255 INCHES MINIMUM AND 1.1275 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 1.0025 INCHES MINIMUM AND 1.0055 INCHES MAXIMUM IN
•
MATERIAL: GLASS FIBER AND PLASTIC EPOXY OUTER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.1255 INCHES MINIMUM AND 1.1275 INCHES MAXIMUM IN
OVERALL LENGTH1.0000 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.0025 INCHES MINIMUM AND 1.0055 INCHES MAXIMUM IN
MATERIALGLASS FIBER AND PLASTIC EPOXY OUTER LAYER
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYVINYL CHLORIDE (PVC) INNER LAYER
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8644805-1?
8644805-1 is a BEARING,SLEEVE.
What is the NSN for 8644805-1?
8644805-1 is cataloged in the U.S. Government catalog under NSN 3120-01-283-9253. 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.