PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 03-047-399
03-047-399 ✓ 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.6250 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN, body_outside_diameter: 0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-534-5777, 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
03-047-399
NSN: 3120-00-534-5777
FSC: 3120
CAGE: 80070 — LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN ROTARY AND MISSION SYSTEMS DIV RMS- C6ISR (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.6250 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
body_outside_diameter0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND A COMPOSITION AND B COMPOSITION
material_document_and_classificationMIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-00-534-5777
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 03-047-399 · 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
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-L-11734 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A COMPOSITION AND B COMPOSITION
•
CORNER SHAPE: SQUARE ALL CORNERS
•
MATERIAL: OIL LUBRICATING LUBRICATION
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY INSIDE DIAMETER0.3130 INCHES MINIMUM AND 0.3140 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-11734 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND MIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A COMPOSITION AND B COMPOSITION
CORNER SHAPESQUARE ALL CORNERS
MATERIALOIL LUBRICATING LUBRICATION
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
BODY OUTSIDE DIAMETER0.4385 INCHES MINIMUM AND 0.4395 INCHES MAXIMUM IN
OVERALL LENGTH0.6250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MILB5687TYPE1C0MP0SITI0NAInterchangeable
interchangeable cross-reference
interchangeable
5226513Interchangeable
interchangeable cross-reference
interchangeable
MILB5687TYPE1C0MP0SITI0NBInterchangeable
interchangeable cross-reference
interchangeable
A345776Interchangeable
interchangeable cross-reference
interchangeable
GAA12565Interchangeable
interchangeable cross-reference
interchangeable
1JH2SUB4PC7FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 03-047-399?
03-047-399 is a BEARING,SLEEVE.
What parts can replace 03-047-399?
There are 19 known substitutes for 03-047-399: MILB5687TYPE1C0MP0SITI0NA, 5226513, MILB5687TYPE1C0MP0SITI0NB and 16 more. Substitute compatibility should be verified for your specific system.
Is 03-047-399 still available?
03-047-399 is currently cancelled.
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Last verified: July 2026