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Technical Data Sheet
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90668 — GASKET

✓ Government record, cited
Ugreen · ORING SEAL
PRODUCT OVERVIEW

90668: GASKET.

Verbatim MO disks can be erased, updated, archived and accessed repeatedly without fear of data loss… even after 40 years of continuous use. MO disks feature a special anti-static/dust-resistant coating that eliminates the problem of static charge, while protecting the cartridge against debris and moisture. Features: - Certified to withstand over 100,000 insertions.

- Archival life exceeds 40 years. - Specially designed to withstand repetitive mechanical handling. - Unique features like the slip ring and plastic centered hub add unparalleled reliability, especially in jukebox environments.

This part is cataloged in the U.S. Government catalog under NSN 5330-00-599-5856, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
90668
NSN: 5330-00-599-5856
NIINs: 005995856, 015940201
FSC: 5330 — Packing and Gasket Materials
CAGE: 89109 — GRAHAM PAIGE CORP (USA)
SPECIFICATIONS
materialASBESTOS AND STEEL OVERALL
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width3.188 INCHES NOMINAL IN
aperture_width3.375 INCHES NOMINAL IN
overall_length5.438 INCHES NOMINAL IN
aperture_length2.000 INCHES NOMINAL IN
inside_corner_radius0.750 INCHES NOMINAL IN
outside_corner_radius0.406 INCHES NOMINAL IN
cross-sectional_thickness0.055 INCHES NOMINAL IN
cross-sectional_shape_styleMETAL AND NONMETALLIC MATERIALS
outside_edge_to_bolt_hole_center_distance_along_width0.406 INCHES NOMINAL IN
outside_edge_to_bolt_hole_center_distance_along_length0.406 INCHES NOMINAL IN
NSN5330-00-599-5856
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 90668 MFR: Ugreen ⚠ 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 THICKNESS: 0.055 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: METAL AND NONMETALLIC MATERIALS
•
APERTURE WIDTH: 3.375 INCHES NOMINAL IN
•
APERTURE LENGTH: 2.000 INCHES NOMINAL IN
•
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 4.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.055 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.750 INCHES NOMINAL IN
OVERALL LENGTH5.438 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEMETAL AND NONMETALLIC MATERIALS
OVERALL WIDTH3.188 INCHES NOMINAL IN
APERTURE WIDTH3.375 INCHES NOMINAL IN
APERTURE LENGTH2.000 INCHES NOMINAL IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG LENGTH4.625 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CENTER TO CENTER DISTANCE BETWEEN BOLT HOLES ALONG WIDTH1.500 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OUTSIDE EDGE TO BOLT HOLE CENTER DISTANCE ALONG LENGTH0.406 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
427281Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB1034Reference document
Same NSN cross-reference
Reference document — Secondary reference
19764AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90668?
90668 is a GASKET manufactured by Ugreen.
What parts can replace 90668?
There are 3 known substitutes for 90668: 427281, BB1034, 19764A. Substitute compatibility should be verified for your specific system.
What is the NSN for 90668?
90668 is cataloged in the U.S. Government catalog under NSN 5330-00-599-5856. This indicates validated use in U.S. government and defense supply chains.
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