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Technical Data Sheet
PartsTable / COMPONENT / 11681
11681 ✓ Verified by PartsTable
Legrand · 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 TRANSFORMER,RADIO FREQUENCY is a Legrand industrial component. Key specifications include material: COPPER ALLOY 937 OVERALL, body_width: 0.375 INCHES NOMINAL IN, body_length: 0.843 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.3437 INCHES NOMINAL FIRST IN, rating_method: WINDING TURNS SINGLE COMPONENT SINGLE PRIMARY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-496-1303, 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
11681
NSN: 3120-00-496-1303
FSC: 3120
CAGE: 61465 — GARWOOD/FELLER INC GARWOOD WINCH DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY 937 OVERALL
body_width0.375 INCHES NOMINAL IN
body_length0.843 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
hole_diameter0.3437 INCHES NOMINAL FIRST IN
rating_methodWINDING TURNS SINGLE COMPONENT SINGLE PRIMARY
turn_quantity5-1/2 SINGLE COMPONENT SINGLE PRIMARY
coil_form_typeSOLID SINGLE COMPONENT
inclosure_typeOPEN
overall_length2.50000 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING SINGLE GROUP
frequency_rating155.0 MEGAHERTZ MINIMUM AND 165.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
NSN3120-00-496-1303
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 11681 · Legrand ⚠ 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
•
HOLE DIAMETER: 0.3437 INCHES NOMINAL FIRST IN
•
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 1 HOLE
•
LUBRICANT ACCOMMODATION STYLE: GROOVED FIGURE 8
•
BODY INSIDE DIAMETER: 2.6280 INCHES MINIMUM AND 2.6310 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 937 OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
HOLE DIAMETER0.3437 INCHES NOMINAL FIRST IN
OVERALL LENGTH2.50000 INCHES NOMINAL IN
ANTIROTATION/LUBRICATION TYPE AND QUANTITY1 HOLE
LUBRICANT ACCOMMODATION STYLEGROOVED FIGURE 8
BODY INSIDE DIAMETER2.6280 INCHES MINIMUM AND 2.6310 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 937 OVERALL
CORNER SHAPESQUARE ALL CORNERS
BODY OUTSIDE DIAMETER3.0030 INCHES MINIMUM AND 3.0050 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
63914565Interchangeable
interchangeable cross-reference
interchangeable
11675Interchangeable
interchangeable cross-reference
interchangeable
RC06-0620Interchangeable
interchangeable cross-reference
interchangeable
4369464Interchangeable
interchangeable cross-reference
interchangeable
604-7Interchangeable
interchangeable cross-reference
interchangeable
12350Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 11681?
11681 is a TRANSFORMER,RADIO FREQUENCY manufactured by Legrand.
What parts can replace 11681?
There are 17 known substitutes for 11681: 63914565, 11675, RC06-0620 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 11681?
11681 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-496-1303. 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