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220544B — RESISTOR,FIXED,WIRE WOUND

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

220544B: RESISTOR,FIXED,WIRE WOUND.

The RESISTOR,FIXED,WIRE WOUND is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY INNER LAYER, corner_shape: SQUARE ALL CORNERS, hole_diameter: 0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM FIRST IN, overall_length: 1.7080 INCHES MINIMUM AND 1.7180 INCHES MAXIMUM IN, style_designator: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES, locking_lug_width: 0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-374-9730, 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
220544B
NSN: 3120-00-374-9730
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY INNER LAYER
corner_shapeSQUARE ALL CORNERS
hole_diameter0.2400 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM FIRST IN
overall_length1.7080 INCHES MINIMUM AND 1.7180 INCHES MAXIMUM IN
style_designatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
locking_lug_width0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN
surface_treatmentTIN OVERALL
locking_lug_height0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
locking_lug_length0.1900 INCHES MINIMUM AND 0.2200 INCHES MAXIMUM IN
body_inside_diameter2.5014 INCHES MINIMUM AND 2.5024 INCHES MAXIMUM IN
body_outside_diameter2.6920 INCHES NOMINAL IN
lubricant_accommodation_styleGROOVED CIRCULAR
NSN3120-00-374-9730
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 220544B · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING: 0.8470 INCHES MINIMUM AND 0.8670 INCHES MAXIMUM FIRST IN
•
LOCKING LUG HEIGHT: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
•
BODY OUTSIDE DIAMETER: 2.6920 INCHES NOMINAL IN
•
STYLE DESIGNATOR: HALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 2.5014 INCHES MINIMUM AND 2.5024 INCHES MAXIMUM IN
•
LUBRICANT ACCOMMODATION STYLE: GROOVED CIRCULAR
TECHNICAL CHARACTERISTICS
CORNER SHAPESQUARE ALL CORNERS
DISTANCE FROM CENTERLINE OF OPENING TO LEFT END OF BEARING0.8470 INCHES MINIMUM AND 0.8670 INCHES MAXIMUM FIRST IN
LOCKING LUG HEIGHT0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER2.6920 INCHES NOMINAL IN
STYLE DESIGNATORHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
OVERALL LENGTH1.7080 INCHES MINIMUM AND 1.7180 INCHES MAXIMUM IN
BODY INSIDE DIAMETER2.5014 INCHES MINIMUM AND 2.5024 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEGROOVED CIRCULAR
LOCKING LUG WIDTH0.1750 INCHES MINIMUM AND 0.1800 INCHES MAXIMUM IN
SURFACE TREATMENTTIN OVERALL
SUBSTITUTES & CROSS-REFERENCES 6
864419Reference document
Same NSN cross-reference
Reference document — Secondary reference
220541BReference document
Same NSN cross-reference
Reference document — Secondary reference
57290Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS13984-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
07-864419Reference document
Same NSN cross-reference
Reference document — Secondary reference
220641Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 220544B?
220544B is a RESISTOR,FIXED,WIRE WOUND.
What parts can replace 220544B?
There are 6 known substitutes for 220544B: 864419, 220541B, 57290 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 220544B?
220544B is cataloged in the U.S. Government catalog under NSN 3120-00-374-9730. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.