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Technical Data Sheet
PartsTable / COMPONENT / NAS77-9-25
NAS77-9-25 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8630 OR STEEL COMP 4130 OVERALL, corner_shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER, flange_width: 0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN, overall_length: 0.3020 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN, surface_finish: 100.0 MICROINCHES INTERMEDIATE LAYER, style_designator: SOLID, EXTERNAL FLANGE ONE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-066-8659, 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
NAS77-9-25
NSN: 3120-00-066-8659
FSC: 3120
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL COMP 8630 OR STEEL COMP 4130 OVERALL
corner_shapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
flange_width0.0570 INCHES MINIMUM AND 0.0620 INCHES MAXIMUM IN
overall_length0.3020 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN
surface_finish100.0 MICROINCHES INTERMEDIATE LAYER
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentCADMIUM OVERALL
body_inside_diameter0.5625 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM IN
body_outside_diameter0.6882 INCHES MINIMUM AND 0.6892 INCHES MAXIMUM IN
flange_outside_diameter0.8020 INCHES MINIMUM AND 0.8220 INCHES MAXIMUM IN
specification/standard_data80205-NAS77 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
material_document_and_classificationMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
NSN3120-00-066-8659
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: NAS77-9-25 · 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
•
BODY OUTSIDE DIAMETER: 0.6882 INCHES MINIMUM AND 0.6892 INCHES MAXIMUM IN
•
SPECIFICATION/STANDARD DATA: 80205-NAS77 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
CORNER SHAPE: SQUARE OUTSIDE RIGHT CORNER
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 8630 OR STEEL COMP 4130 OVERALL
•
FLANGE OUTSIDE DIAMETER: 0.8020 INCHES MINIMUM AND 0.8220 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.6882 INCHES MINIMUM AND 0.6892 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA80205-NAS77 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6050 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8630 OR STEEL COMP 4130 OVERALL
FLANGE OUTSIDE DIAMETER0.8020 INCHES MINIMUM AND 0.8220 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.5625 INCHES MINIMUM AND 0.5640 INCHES MAXIMUM IN
SURFACE FINISH100.0 MICROINCHES INTERMEDIATE LAYER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
NAS77Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS77-9-25?
NAS77-9-25 is a BUSHING,SLEEVE.
What parts can replace NAS77-9-25?
There is 1 known substitute for NAS77-9-25: NAS77. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS77-9-25?
NAS77-9-25 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-066-8659. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026