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Technical Data Sheet
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4L750 — Technical Data Sheet

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— · 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

SOCKET,PLUG-IN ELECTRONIC COMPON. Key specifications include material: FIBER AND RUBBER BODY, nominal_width: 0.500 INCHES IN, style_designator: COG OR NOTCHED, cross-sectional_size: 4L, strengthening_feature: FIBER CORD, nominal_effective_outside_length: 75.000 INCHES IN. This part is cataloged in the Federal Logistics Information System under NSN 3130-00-190-9361, 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
4L750
NSN: 3130-00-190-9361
FSC: 3130
CAGE: 71041 — ALTRA INDUSTRIAL MOTION CORP. (USA)
SPECIFICATIONS
materialFIBER AND RUBBER BODY
nominal_width0.500 INCHES IN
style_designatorCOG OR NOTCHED
cross-sectional_size4L
strengthening_featureFIBER CORD
nominal_effective_outside_length75.000 INCHES IN
NSN3130-00-190-9361
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 4L750 · 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
•
MOUNTING HOLE TYPE: SLOTTED
•
BLOCK TYPE: FIXED
•
FEATURES PROVIDED: GROUND ROLLING ELEMENT GROOVE
•
SEAL LOCATION: BOTH ENDS
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
MATERIAL: STEEL SEAL
•
LOAD CAPABILITY TYPE: RADIAL
TECHNICAL CHARACTERISTICS
MOUNTING HOLE TYPESLOTTED
BLOCK TYPEFIXED
FEATURES PROVIDEDGROUND ROLLING ELEMENT GROOVE
SEAL LOCATIONBOTH ENDS
INTERNAL FIT-UP DESIGNATIONSTANDARD
MATERIALSTEEL SEAL
LOAD CAPABILITY TYPERADIAL
MATERIALIRON CAST HOUSING
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE1.2500 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, SOLID
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
30S1K6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
218584InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
561653InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
7010-02InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A83269InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
909552InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4L750?
4L750 is a SOCKET,PLUG-IN ELECTRONIC COMPON.
What parts can replace 4L750?
There are 22 known substitutes for 4L750: 30S1K6, 218584, 561653 and 19 more. Substitute compatibility should be verified for your specific system.
Is 4L750 still available?
4L750 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026