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65257 — 65257

✓ Government record, cited
Hama · BALL BEARING
PRODUCT OVERVIEW

65257: 65257.

- Border / Width: 34 mm - Frame Size: 30 x 40 cm - Picture Size: 20 x 28 cm - Picture Size Digital Picture: 20 x 27 cm - Colour: Oak - Type of Glass: Reflex - Line: Georgia. Key specifications include end_item_identification: SHRIKE, part_name_assigned_by_controlling_agency: ROTOR, CCW, SPRIKE. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-662-8936, 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
65257
NSN: 3120-00-662-8936
NIINs: 006628936, 016535402
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
end_item_identificationSHRIKE
part_name_assigned_by_controlling_agencyROTOR, CCW, SPRIKE
NSN3120-00-662-8936
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 65257 · Hama ⚠ 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: 1.8765 INCHES MINIMUM AND 1.8815 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
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BODY INSIDE DIAMETER: 1.7495 INCHES MINIMUM AND 1.7525 INCHES MAXIMUM IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
MATERIAL: TIN ALLOY INNER LAYER
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER1.8765 INCHES MINIMUM AND 1.8815 INCHES MAXIMUM IN
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.7500 INCHES NOMINAL IN
BODY INSIDE DIAMETER1.7495 INCHES MINIMUM AND 1.7525 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
MATERIALTIN ALLOY INNER LAYER
MATERIALSTEEL OUTER LAYER
SURFACE GROOVE LOCATION AND QUANTITY1 INTERNAL
SUBSTITUTES & CROSS-REFERENCES 3
H65257-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
82312S41-155PC24Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H65257Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 65257?
65257 is a 65257 manufactured by Hama.
What parts can replace 65257?
There are 3 known substitutes for 65257: H65257-1, 82312S41-155PC24, H65257. Substitute compatibility should be verified for your specific system.
What is the NSN for 65257?
65257 is cataloged in the U.S. Government catalog under NSN 3120-00-662-8936. 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.