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90-321 — BEARING,PLAIN,SPHERICAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

90-321: BEARING,PLAIN,SPHERICAL.

The BEARING,PLAIN,SPHERICAL is a the manufacturer industrial component. Key specifications include angle: 30.0 DEGREES NOMINAL, material: PLASTIC INNER LAYER, corner_shape: SQUARE INSIDE RIGHT CORNER, overall_length: 428.0 MILLIMETERS NOMINAL MM, surface_finish: 32.0 MICROINCHES SPHERICAL SURFACE, special_features: GUIDE STUD, M16 THREADS. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-298-5846, 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
90-321
NSN: 5330-00-298-5846
NIINs: 002985846, 009085317, 016564084, 016775894
FSC: 5330 — Packing and Gasket Materials
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
angle30.0 DEGREES NOMINAL
materialPLASTIC INNER LAYER
corner_shapeSQUARE INSIDE RIGHT CORNER
overall_length428.0 MILLIMETERS NOMINAL MM
surface_finish32.0 MICROINCHES SPHERICAL SURFACE
special_featuresGUIDE STUD, M16 THREADS
style_designatorSOLID
rim_surface_width0.062 INCHES NOMINAL IN
peripheral_diameter1.250 INCHES NOMINAL IN
body_inside_diameter0.4677 INCHES MINIMUM AND 0.4682 INCHES MAXIMUM IN
center_hole_diameter0.766 INCHES NOMINAL IN
cross-sectional_height0.312 INCHES NOMINAL IN
NSN5330-00-298-5846
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90-321 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL HEIGHT: 0.312 INCHES NOMINAL IN
•
RIM SURFACE WIDTH: 0.062 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ANGLE
•
ANGLE: 30.0 DEGREES NOMINAL
•
PERIPHERAL DIAMETER: 1.250 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.766 INCHES NOMINAL IN
•
MATERIAL: LEATHER OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.312 INCHES NOMINAL IN
RIM SURFACE WIDTH0.062 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEANGLE
ANGLE30.0 DEGREES NOMINAL
PERIPHERAL DIAMETER1.250 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.766 INCHES NOMINAL IN
MATERIALLEATHER OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90-321?
90-321 is a BEARING,PLAIN,SPHERICAL.
What is the NSN for 90-321?
90-321 is cataloged in the U.S. Government catalog under NSN 5330-00-298-5846. This indicates validated use in U.S. government and defense supply chains.
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