PartsTable
Technical Data Sheet
Download PDF

6539318 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6539318: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, hole_diameter: 0.406 INCHES NOMINAL IN, body_thickness: 0.630 INCHES NOMINAL IN, outside_diameter: 5.600 INCHES NOMINAL IN, special_features: T6 HEAT TREAT, surface_treatment: ANODIZE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-594-6935, 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
6539318
NSN: 5340-01-594-6935
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
hole_diameter0.406 INCHES NOMINAL IN
body_thickness0.630 INCHES NOMINAL IN
outside_diameter5.600 INCHES NOMINAL IN
special_featuresT6 HEAT TREAT
surface_treatmentANODIZE
bolt_circle_hole_quantity4
part_name_assigned_by_controlling_agencyCOVER,BASE RING
NSN5340-01-594-6935
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6539318 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
•
BOLT CIRCLE HOLE QUANTITY: 4
•
OUTSIDE DIAMETER: 5.600 INCHES NOMINAL IN
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 6061
•
HOLE DIAMETER: 0.406 INCHES NOMINAL IN
•
BODY THICKNESS: 0.630 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY4
OUTSIDE DIAMETER5.600 INCHES NOMINAL IN
SPECIAL FEATUREST6 HEAT TREAT
SURFACE TREATMENTANODIZE
PART NAME ASSIGNED BY CONTROLLING AGENCYCOVER,BASE RING
MATERIALALUMINUM ALLOY 6061
HOLE DIAMETER0.406 INCHES NOMINAL IN
BODY THICKNESS0.630 INCHES NOMINAL IN
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
No demilitarization required
Ready to buy 6539318?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 6539318?
6539318 is a COVER,ACCESS.
What is the NSN for 6539318?
6539318 is cataloged in the U.S. Government catalog under NSN 5340-01-594-6935. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 6539318

✓ 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.