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GB10A8-9 — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

GB10A8-9: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP E4340 OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.5525 INCHES MINIMUM AND 0.5575 INCHES MAXIMUM IN, hardness_rating: 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-486-8680, 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
GB10A8-9
NSN: 3120-00-486-8680
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP E4340 OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.5525 INCHES MINIMUM AND 0.5575 INCHES MAXIMUM IN
hardness_rating33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.4930 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
body_outside_diameter0.6882 INCHES MINIMUM AND 0.6891 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN3120-00-486-8680
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: GB10A8-9 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
BODY OUTSIDE DIAMETER: 0.6882 INCHES MINIMUM AND 0.6891 INCHES MAXIMUM IN
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
•
BODY INSIDE DIAMETER: 0.4930 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
BODY OUTSIDE DIAMETER0.6882 INCHES MINIMUM AND 0.6891 INCHES MAXIMUM IN
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-5000 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.5525 INCHES MINIMUM AND 0.5575 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.4930 INCHES MINIMUM AND 0.4950 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 4140 OR STEEL COMP E4340 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GB10A8-9?
GB10A8-9 is a BUSHING,SLEEVE.
What is the NSN for GB10A8-9?
GB10A8-9 is cataloged in the U.S. Government catalog under NSN 3120-00-486-8680. 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.