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651-493 — SLEEVE,SEAL,COUPLER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

651-493: SLEEVE,SEAL,COUPLER.

The SLEEVE,SEAL,COUPLER is a the manufacturer industrial component. Key specifications include material: RUBBER SILICONE CLASS Q OVERALL, cross-sectional_length: 0.938 INCHES NOMINAL IN, cross-sectional_shape_style: SPHERICAL, cross_section_inside_diameter: 1.500 INCHES NOMINAL IN, cross_section_outside_diameter: 1.624 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-080-0478, 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
651-493
NSN: 5330-01-080-0478
FSC: 5330 — Packing and Gasket Materials
CAGE: 53655 — AVOX SYSTEMS INC DBA AVOX SYSTEMS INC (USA)
SPECIFICATIONS
materialRUBBER SILICONE CLASS Q OVERALL
cross-sectional_length0.938 INCHES NOMINAL IN
cross-sectional_shape_styleSPHERICAL
cross_section_inside_diameter1.500 INCHES NOMINAL IN
cross_section_outside_diameter1.624 INCHES NOMINAL IN
NSN5330-01-080-0478
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 651-493 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 SHAPE STYLE: SPHERICAL
•
CROSS-SECTIONAL LENGTH: 0.938 INCHES NOMINAL IN
•
CROSS SECTION INSIDE DIAMETER: 1.500 INCHES NOMINAL IN
•
CROSS SECTION OUTSIDE DIAMETER: 1.624 INCHES NOMINAL IN
•
MATERIAL: RUBBER SILICONE CLASS Q OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL SHAPE STYLESPHERICAL
CROSS-SECTIONAL LENGTH0.938 INCHES NOMINAL IN
CROSS SECTION INSIDE DIAMETER1.500 INCHES NOMINAL IN
CROSS SECTION OUTSIDE DIAMETER1.624 INCHES NOMINAL IN
MATERIALRUBBER SILICONE CLASS Q OVERALL
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 651-493?
651-493 is a SLEEVE,SEAL,COUPLER.
What is the NSN for 651-493?
651-493 is cataloged in the U.S. Government catalog under NSN 5330-01-080-0478. 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.