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SE2020-11 — PACKING,PREFORMED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

SE2020-11: PACKING,PREFORMED.

The PACKING,PREFORMED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC AND CORK OVERALL, peripheral_diameter: 1.875 INCHES NOMINAL IN, center_hole_diameter: 1.281 INCHES NOMINAL IN, cross-sectional_height: 0.156 INCHES NOMINAL IN, material_document_and_classification: MIL-C-6183 MIL SPEC ALL MATERIAL RESPONSES OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-409-3777, 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
SE2020-11
NSN: 5330-00-409-3777
FSC: 5330 — Packing and Gasket Materials
CAGE: 76257 — CROSBY GROUP INC THE MCKISSICK PLANT DIV (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC AND CORK OVERALL
peripheral_diameter1.875 INCHES NOMINAL IN
center_hole_diameter1.281 INCHES NOMINAL IN
cross-sectional_height0.156 INCHES NOMINAL IN
cross-sectional_shape_styleU
material_document_and_classificationMIL-C-6183 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-409-3777
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SE2020-11 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: 0.156 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-C-6183 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: U
•
PERIPHERAL DIAMETER: 1.875 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 1.281 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC AND CORK OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.156 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-C-6183 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLEU
PERIPHERAL DIAMETER1.875 INCHES NOMINAL IN
CENTER HOLE DIAMETER1.281 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC AND CORK OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
10159182Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SE2020-11?
SE2020-11 is a PACKING,PREFORMED.
What parts can replace SE2020-11?
There is 1 known substitute for SE2020-11: 10159182. Substitute compatibility should be verified for your specific system.
What is the NSN for SE2020-11?
SE2020-11 is cataloged in the U.S. Government catalog under NSN 5330-00-409-3777. 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.