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D83121 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

D83121: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, outside_diameter: 11.370 INCHES MINIMUM AND 11.870 INCHES MAXIMUM IN, special_features: 4 EQUALLY SPACED NOTCHES ON OD 1.000 INCH WIDE BY 0.810 INCH DEEP AND 0.120 INCH RADIUS ON INSIDE CORNERS OF NOTCHES IN, style_designator: CIRCULAR, aperture_diameter: 8.500 INCHES MINIMUM AND 8.740 INCHES MAXIMUM IN, cross-sectional_thickness: 0.880 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-086-7890, 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
D83121
NSN: 5330-01-086-7890
FSC: 5330 — Packing and Gasket Materials
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
outside_diameter11.370 INCHES MINIMUM AND 11.870 INCHES MAXIMUM IN
special_features4 EQUALLY SPACED NOTCHES ON OD 1.000 INCH WIDE BY 0.810 INCH DEEP AND 0.120 INCH RADIUS ON INSIDE CORNERS OF NOTCHES IN
style_designatorCIRCULAR
aperture_diameter8.500 INCHES MINIMUM AND 8.740 INCHES MAXIMUM IN
cross-sectional_thickness0.880 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationMIL-STD-670 SCE 3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-086-7890
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: D83121 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 THICKNESS: 0.880 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-STD-670 SCE 3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 11.370 INCHES MINIMUM AND 11.870 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 8.500 INCHES MINIMUM AND 8.740 INCHES MAXIMUM IN
•
MATERIAL: RUBBER CHLOROPRENE CLASS CR OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.880 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-STD-670 SCE 3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER11.370 INCHES MINIMUM AND 11.870 INCHES MAXIMUM IN
APERTURE DIAMETER8.500 INCHES MINIMUM AND 8.740 INCHES MAXIMUM IN
SPECIAL FEATURES4 EQUALLY SPACED NOTCHES ON OD 1.000 INCH WIDE BY 0.810 INCH DEEP AND 0.120 INCH RADIUS ON INSIDE CORNERS OF NOTCHES IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
354643Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is D83121?
D83121 is a GASKET.
What parts can replace D83121?
There is 1 known substitute for D83121: 354643. Substitute compatibility should be verified for your specific system.
What is the NSN for D83121?
D83121 is cataloged in the U.S. Government catalog under NSN 5330-01-086-7890. This indicates validated use in U.S. government and defense supply chains.
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