PartsTable
Technical Data Sheet
B3-43 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include color: BLUE, COLOR ASSN OF THE US, 67124 SYMBOL, material: STEEL CORROSION RESISTING OVERALL, thickness: 0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN, fiber_material: COTTON OR COTTON AND POLYESTER BACKGROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-4931, 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
MRO MRO_GENERAL B3-43
NSN: 3120-00-661-4931
FSC: 3120
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
colorBLUE, COLOR ASSN OF THE US, 67124 SYMBOL
materialSTEEL CORROSION RESISTING OVERALL
thickness0.019 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
corner_shapeSQUARE ALL CORNERS
hole_diameter0.088 INCHES MINIMUM AND 0.093 INCHES MAXIMUM IN
fiber_materialCOTTON OR COTTON AND POLYESTER BACKGROUND
overall_length0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
user_designatorENLISTED MAN
overall_diameter0.148 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN
size_designationLARGE
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
attachment_methodSEW-ON
NSN3120-00-661-4931
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B3-43 · 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
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND P CASE
CORNER SHAPE: SQUARE ALL CORNERS
MATERIAL: OIL LUBRICATING LUBRICATION
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER: 0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA1 TYPE AND P CASE
CORNER SHAPESQUARE ALL CORNERS
MATERIALOIL LUBRICATING LUBRICATION
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY OUTSIDE DIAMETER0.2510 INCHES MINIMUM AND 0.2520 INCHES MAXIMUM IN
OVERALL LENGTH0.3700 INCHES MINIMUM AND 0.3800 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER0.1875 INCHES MINIMUM AND 0.1885 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
0N174015Interchangeable
interchangeable cross-reference
interchangeable
8-512-10Interchangeable
interchangeable cross-reference
interchangeable
583640-1Interchangeable
interchangeable cross-reference
interchangeable
B3-43Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14651Interchangeable
interchangeable cross-reference
interchangeable
MIL-I-14651Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B3-43?
B3-43 is a SOCKET,PLUG-IN ELECTRONIC COMPON. It is classified as a MRO (MRO_GENERAL).
What parts can replace B3-43?
There are 10 known substitutes for B3-43: 0N174015, 8-512-10, 583640-1 and 7 more. Substitute compatibility should be verified for your specific system.
Is B3-43 still available?
B3-43 is currently cancelled.
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