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568661 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

568661: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.125 INCHES NOMINAL IN, length: 4.500 INCHES NOMINAL IN, material: STEEL, inside_width: 3.500 INCHES NOMINAL IN, corner_radius: 0.406 INCHES NOMINAL IN, hole_diameter: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-615-0756, 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
568661
NSN: 5340-00-615-0756
FSC: 5340 — Hardware, Commercial
CAGE: 12204 — CHRYSLER REALTY COMPANY LLC DBA DAIMLER CHRYSLER (USA)
SPECIFICATIONS
width4.125 INCHES NOMINAL IN
length4.500 INCHES NOMINAL IN
materialSTEEL
inside_width3.500 INCHES NOMINAL IN
corner_radius0.406 INCHES NOMINAL IN
hole_diameter0.375 INCHES NOMINAL IN
inside_length0.125 INCHES NOMINAL IN
body_thickness0.178 INCHES NOMINAL IN
flange_thickness0.285 INCHES NOMINAL IN
special_featuresRED
surface_treatmentPAINT
inside_corner_radius0.178 INCHES NOMINAL IN
NSN5340-00-615-0756
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 568661 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 0.343 INCHES NOMINAL IN
•
INSIDE WIDTH: 3.500 INCHES NOMINAL IN
•
CORNER RADIUS: 0.406 INCHES NOMINAL IN
•
LENGTH: 4.500 INCHES NOMINAL IN
•
INSIDE LENGTH: 0.125 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 3.718 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.285 INCHES NOMINAL IN
•
INSIDE CORNER RADIUS: 0.178 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.343 INCHES NOMINAL IN
INSIDE WIDTH3.500 INCHES NOMINAL IN
CORNER RADIUS0.406 INCHES NOMINAL IN
LENGTH4.500 INCHES NOMINAL IN
INSIDE LENGTH0.125 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH3.718 INCHES NOMINAL IN
FLANGE THICKNESS0.285 INCHES NOMINAL IN
INSIDE CORNER RADIUS0.178 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.125 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH3.437 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 5
92572Reference document
Same NSN cross-reference
Reference document — Secondary reference
2031434Reference document
Same NSN cross-reference
Reference document — Secondary reference
19SKB0188Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
53SP18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
667173Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 568661?
568661 is a COVER,ACCESS.
What parts can replace 568661?
There are 5 known substitutes for 568661: 92572, 2031434, 19SKB0188 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 568661?
568661 is cataloged in the U.S. Government catalog under NSN 5340-00-615-0756. This indicates validated use in U.S. government and defense supply chains.
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