PartsTable
Technical Data Sheet
P-508 ✓ Verified by PartsTable
· 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 SWITCH,ROTARY is a the manufacturer industrial component. Key specifications include material: OIL LUBRICATING LUBRICATION, body_width: 0.693 INCHES NOMINAL IN, body_height: 0.380 INCHES NOMINAL IN, body_length: 0.743 INCHES NOMINAL IN, corner_shape: SQUARE ALL CORNERS, rating_method: ELECTRICAL SINGLE COMPONENT SINGLE WINDING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-899-2254, 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
P-508
NSN: 3120-00-899-2254
FSC: 3120
CAGE: 60960 — BUNTING BEARINGS CORP KALAMAZOO PLANT (USA)
SPECIFICATIONS
materialOIL LUBRICATING LUBRICATION
body_width0.693 INCHES NOMINAL IN
body_height0.380 INCHES NOMINAL IN
body_length0.743 INCHES NOMINAL IN
corner_shapeSQUARE ALL CORNERS
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
inclosure_typeFULLY INCLOSED
overall_length0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
inductance_typeFIXED
mounting_methodTHREADED HOLE(S) SINGLE GROUP
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
winding_quantity1 SINGLE COMPONENT
NSN3120-00-899-2254
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: P-508 · 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
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
MATERIAL: OIL LUBRICATING LUBRICATION
CORNER SHAPE: SQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
BODY INSIDE DIAMETER: 0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALOIL LUBRICATING LUBRICATION
CORNER SHAPESQUARE ALL CORNERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-5687,TY 1,COMP A OR B MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
BODY INSIDE DIAMETER0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-L-15016, SYMBOL 2190 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
OVERALL LENGTH0.9950 INCHES MINIMUM AND 1.0050 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.6270 INCHES MINIMUM AND 0.6280 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
40D42Interchangeable
interchangeable cross-reference
interchangeable
ASB28Interchangeable
interchangeable cross-reference
interchangeable
542109Interchangeable
interchangeable cross-reference
interchangeable
13075Interchangeable
interchangeable cross-reference
interchangeable
P50-8Interchangeable
interchangeable cross-reference
interchangeable
MS17795-76Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is P-508?
P-508 is a SWITCH,ROTARY.
What parts can replace P-508?
There are 9 known substitutes for P-508: 40D42, ASB28, 542109 and 6 more. Substitute compatibility should be verified for your specific system.
Is P-508 still available?
P-508 is currently cancelled.
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