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PartsTable / COMPONENT / 803-1623943 PIECE 56
803-1623943 PIECE 56 ✓ 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 BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC OVERALL, corner_shape: SQUARE ALL CORNERS, flange_width: 0.1250 INCHES NOMINAL IN, overall_length: 0.9350 INCHES NOMINAL IN, style_designator: SOLID, EXTERNAL FLANGE ONE END, body_inside_diameter: 0.7540 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-346-3859, 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
803-1623943 PIECE 56
NSN: 3120-01-346-3859
FSC: 3120
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC OVERALL
corner_shapeSQUARE ALL CORNERS
flange_width0.1250 INCHES NOMINAL IN
overall_length0.9350 INCHES NOMINAL IN
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter0.7540 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
body_outside_diameter1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
flange_outside_diameter1.2500 INCHES NOMINAL IN
material_document_and_classificationMIL-B-81934 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN3120-01-346-3859
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 803-1623943 PIECE 56 · 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
•
BODY OUTSIDE DIAMETER: 1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.7540 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-81934 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
FLANGE WIDTH: 0.1250 INCHES NOMINAL IN
•
FLANGE OUTSIDE DIAMETER: 1.2500 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER1.0010 INCHES MINIMUM AND 1.0020 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.7540 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND PLASTIC POLYAMIDE NYLON AND PLASTIC PHENOLIC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-81934 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
FLANGE WIDTH0.1250 INCHES NOMINAL IN
FLANGE OUTSIDE DIAMETER1.2500 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
OVERALL LENGTH0.9350 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
803-1623943Interchangeable
interchangeable cross-reference
interchangeable
803-5184173 PC 12Interchangeable
interchangeable cross-reference
interchangeable
803-1623943 PC 14Interchangeable
interchangeable cross-reference
interchangeable
A62401-LPD-012F PC14Interchangeable
interchangeable cross-reference
interchangeable
A62401-LPD-012FInterchangeable
interchangeable cross-reference
interchangeable
GBSF-12-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 803-1623943 PIECE 56?
803-1623943 PIECE 56 is a BEARING,SLEEVE.
What parts can replace 803-1623943 PIECE 56?
There are 12 known substitutes for 803-1623943 PIECE 56: 803-1623943, 803-5184173 PC 12, 803-1623943 PC 14 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 803-1623943 PIECE 56?
803-1623943 PIECE 56 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-346-3859. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026