PartsTable
Technical Data Sheet
AA-521-9 ✓ 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 RECORDER SUBASSEMBLY is a the manufacturer cable assembly designed for reliable internal or external connectivity in enterprise server and storage environments. Key specifications include material: BRONZE OVERALL, overall_length: 0.375 INCHES NOMINAL IN, body_outside_diameter: 0.503 INCHES NOMINAL IN, end_item_identification: KC-46A SE A, part_name_assigned_by_controlling_agency: BUSHING,SLEEVE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-489-4145, 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
AA-521-9
NSN: 3120-00-489-4145
FSC: 3120
CAGE: 70901 — BEEMER PRECISION INC (USA)
SPECIFICATIONS
materialBRONZE OVERALL
overall_length0.375 INCHES NOMINAL IN
body_outside_diameter0.503 INCHES NOMINAL IN
end_item_identificationKC-46A SE A
part_name_assigned_by_controlling_agencyBUSHING,SLEEVE
NSN3120-00-489-4145
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: AA-521-9 · 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
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CORNER SHAPE: SQUARE ALL CORNERS
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL: COPPER ALLOY OVERALL
BODY INSIDE DIAMETER: 0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER: 0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
TYPICAL APPLICATIONS
  • Server Internal Cabling
  • Data Center Cable Infrastructure
  • SAS/SATA Drive Connectivity
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CORNER SHAPESQUARE ALL CORNERS
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALCOPPER ALLOY OVERALL
BODY INSIDE DIAMETER0.3740 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.5020 INCHES MINIMUM AND 0.5030 INCHES MAXIMUM IN
MATERIALOIL LUBRICATING LUBRICATION
OVERALL LENGTH0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A5219Interchangeable
interchangeable cross-reference
interchangeable
05943Interchangeable
interchangeable cross-reference
interchangeable
05943REVFInterchangeable
interchangeable cross-reference
interchangeable
34-2726983-1Interchangeable
interchangeable cross-reference
interchangeable
F92K004Interchangeable
interchangeable cross-reference
interchangeable
92-11-23-001 ALBInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA-521-9?
AA-521-9 is a RECORDER SUBASSEMBLY.
What parts can replace AA-521-9?
There are 10 known substitutes for AA-521-9: A5219, 05943, 05943REVF and 7 more. Substitute compatibility should be verified for your specific system.
Is AA-521-9 still available?
AA-521-9 is currently cancelled.
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