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A863 — SEAL,DUST,PISTON OU

✓ Government record, cited
— · MOTOR
PRODUCT OVERVIEW

A863: SEAL,DUST,PISTON OU.

The SEAL,DUST,PISTON OU is a the manufacturer industrial component. Key specifications include material: STEEL, construction: ONE-PIECE, hole_diameter: 0.594 INCHES NOMINAL IN, outside_diameter: 4.094 INCHES NOMINAL IN, style_designator: NON-CIRCULAR W/APERTURE, aperture_diameter: 2.922 INCHES MINIMUM AND 2.938 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 6105-00-332-9087, 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
A863
NSN: 6105-00-332-9087
NIINs: 003329087, 005252026, 007086569, 007373152, 009522486
FSC: 6105 — Motors, Electrical
CAGE: 70211 — INDRESCO INC INDUSTRIAL TOOL DIV (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
hole_diameter0.594 INCHES NOMINAL IN
outside_diameter4.094 INCHES NOMINAL IN
style_designatorNON-CIRCULAR W/APERTURE
aperture_diameter2.922 INCHES MINIMUM AND 2.938 INCHES MAXIMUM IN
bolt_hole_quantity6
bolt_circle_diameter3.438 INCHES NOMINAL IN
fsc_application_dataUNIVERSAL JOINT 1/4 TON TRUCK
outside_corner_inverted_radius0.188 INCHES NOMINAL IN
side_radius_from_gasket_center1.625 INCHES NOMINAL IN
NSN6105-00-332-9087
COMPONENT DIAGRAM
ELECTRIC MOTOR — FRAME SIZE = MOUNTING PATTERN SHAFT J-BOX MOUNTING FEET — FRAME — — · — RPM — · — PN: A863 · OEM ⚠ VERIFY BEFORE ORDERING NEMA frame size determines mounting bolt pattern — not interchangeable. 56C ≠ 143T bolt pattern. C-face vs foot-mount vs flange — different mounting, same HP doesn't mean drop-in ✓ BROKER TIP TEFC = outdoor/washdown OK. ODP = dry indoor only. TENV = no external fan, explosion-proof areas. 1750 RPM = 4-pole (most common), 3450 RPM = 2-pole, 1150 RPM = 6-pole PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 1
X6103Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A863?
A863 is a SEAL,DUST,PISTON OU.
What parts can replace A863?
There is 1 known substitute for A863: X6103. Substitute compatibility should be verified for your specific system.
What is the NSN for A863?
A863 is cataloged in the U.S. Government catalog under NSN 6105-00-332-9087. 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.