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20517 — HOUSING,BEARING UNIT

✓ Government record, cited
Legrand · BALL BEARING
PRODUCT OVERVIEW

20517: HOUSING,BEARING UNIT.

Spill-resistant keyboard with full-size key layout for comfortable typing. Key specifications include diameter: 0.173 INCHES NOMINAL IN, material: STEEL, lead_size: THIN, face_width: 23.187 INCHES NOMINAL IN, overall_width: 2.500 INCHES NOMINAL IN, physical_form: PASTE. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-071-6193, 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
20517
NSN: 3120-00-071-6193
NIINs: 000716193, 002915295, 005226101, 006596690, 007725840, 012726931, 012908266, 012944207, 013443629, 014166476
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 93567 — STANRAY CORP CRESCI-DEBOLIAC AVIATION EQUIPMENT DIV (USA)
SPECIFICATIONS
diameter0.173 INCHES NOMINAL IN
materialSTEEL
lead_sizeTHIN
face_width23.187 INCHES NOMINAL IN
overall_width2.500 INCHES NOMINAL IN
physical_formPASTE
inclosure_typeFULLY INCLOSED
overall_height1.300 INCHES MAXIMUM IN
overall_length2.500 INCHES NOMINAL IN
first_end_styleCHAMFERED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating100.0 KILOHERTZ NOMINAL SINGLE COMPONENT
NSN3120-00-071-6193
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 20517 · 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: PLAIN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A519 ASSN STD SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 1.625 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: STEEL
•
FACE WIDTH: 23.187 INCHES NOMINAL IN
•
BORE INSIDE DIAMETER: 1.187 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPLAIN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A519 ASSN STD SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER1.625 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
SPECIAL FEATURESBOTH ENDS COUNTERBORED,1.252 IN. MIN 1.253 IN MAX ID 2.562 IN. LG IN
MATERIALSTEEL
FACE WIDTH23.187 INCHES NOMINAL IN
BORE INSIDE DIAMETER1.187 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20517?
20517 is a HOUSING,BEARING UNIT manufactured by Legrand.
What is the NSN for 20517?
20517 is cataloged in the U.S. Government catalog under NSN 3120-00-071-6193. 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.