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500-6979-9 — CUP,COMPRESSION

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

500-6979-9: CUP,COMPRESSION.

The CUP,COMPRESSION is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, overall_length: 0.375 INCHES NOMINAL IN, overall_diameter: 3.542 INCHES NOMINAL IN, feather_edge_angle: 68.0 DEGREES NOMINAL, center_hole_diameter: 0.750 INCHES NOMINAL IN, base_material_thickness: 0.188 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-934-9948, 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
500-6979-9
NSN: 5340-00-934-9948
FSC: 5340 — Hardware, Commercial
CAGE: 26289 — GREENLEE TEXTRON INC. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
overall_length0.375 INCHES NOMINAL IN
overall_diameter3.542 INCHES NOMINAL IN
feather_edge_angle68.0 DEGREES NOMINAL
center_hole_diameter0.750 INCHES NOMINAL IN
base_material_thickness0.188 INCHES NOMINAL IN
recess_major_inside_diameter3.520 INCHES NOMINAL IN
NSN5340-00-934-9948
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 500-6979-9 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
•
FEATHER EDGE ANGLE: 68.0 DEGREES NOMINAL
•
OVERALL DIAMETER: 3.542 INCHES NOMINAL IN
•
RECESS MAJOR INSIDE DIAMETER: 3.520 INCHES NOMINAL IN
•
CENTER HOLE DIAMETER: 0.750 INCHES NOMINAL IN
•
BASE MATERIAL THICKNESS: 0.188 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC OVERALL
TECHNICAL CHARACTERISTICS
FEATHER EDGE ANGLE68.0 DEGREES NOMINAL
OVERALL DIAMETER3.542 INCHES NOMINAL IN
OVERALL LENGTH0.375 INCHES NOMINAL IN
RECESS MAJOR INSIDE DIAMETER3.520 INCHES NOMINAL IN
CENTER HOLE DIAMETER0.750 INCHES NOMINAL IN
BASE MATERIAL THICKNESS0.188 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 500-6979-9?
500-6979-9 is a CUP,COMPRESSION.
What is the NSN for 500-6979-9?
500-6979-9 is cataloged in the U.S. Government catalog under NSN 5340-00-934-9948. 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.