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20489125 — GASKET

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

20489125: GASKET.

The GASKET is a the manufacturer industrial component. Key specifications include outside_diameter: 2.630 INCHES MINIMUM AND 2.690 INCHES MAXIMUM IN, aperture_diameter: 1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN, cross-sectional_thickness: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-161-2608, 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
20489125
NSN: 5330-01-161-2608
FSC: 5330 — Packing and Gasket Materials
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
outside_diameter2.630 INCHES MINIMUM AND 2.690 INCHES MAXIMUM IN
aperture_diameter1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
cross-sectional_thickness0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
NSN5330-01-161-2608
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20489125 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: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 2.630 INCHES MINIMUM AND 2.690 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
OUTSIDE DIAMETER2.630 INCHES MINIMUM AND 2.690 INCHES MAXIMUM IN
APERTURE DIAMETER1.990 INCHES MINIMUM AND 2.050 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES 1
9832955Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 20489125?
20489125 is a GASKET.
What parts can replace 20489125?
There is 1 known substitute for 20489125: 9832955. Substitute compatibility should be verified for your specific system.
What is the NSN for 20489125?
20489125 is cataloged in the U.S. Government catalog under NSN 5330-01-161-2608. 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.