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6393426-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6393426-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 2.750 INCHES NOMINAL IN, length: 2.750 INCHES NOMINAL IN, material: COPPER ALLOY AND NICKEL ALLOY, inside_width: 0.375 INCHES NOMINAL IN, inside_length: 1.130 INCHES NOMINAL IN, flange_thickness: 0.320 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-524-8301, 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
6393426-1
NSN: 5340-01-524-8301
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
width2.750 INCHES NOMINAL IN
length2.750 INCHES NOMINAL IN
materialCOPPER ALLOY AND NICKEL ALLOY
inside_width0.375 INCHES NOMINAL IN
inside_length1.130 INCHES NOMINAL IN
flange_thickness0.320 INCHES NOMINAL IN
corner_bevel_length0.120 INCHES NOMINAL IN
peripheral_shape_styleRECTANGLE, FOUR HOLES
first_recess_inside_height0.320 INCHES NOMINAL IN
cross-sectional_shape_styleSQUARE OR RECTANGULAR RECESS
distance_between_holes_along_width2.186 INCHES NOMINAL IN
distance_between_holes_along_length2.186 INCHES NOMINAL IN
NSN5340-01-524-8301
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6393426-1 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: 2.470 INCHES NOMINAL IN
•
INSIDE WIDTH: 0.375 INCHES NOMINAL IN
•
LENGTH: 2.750 INCHES NOMINAL IN
•
INSIDE LENGTH: 1.130 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.186 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.320 INCHES NOMINAL IN
•
FIRST RECESS INSIDE HEIGHT: 0.320 INCHES NOMINAL IN
•
CORNER BEVEL LENGTH: 0.120 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH2.470 INCHES NOMINAL IN
INSIDE WIDTH0.375 INCHES NOMINAL IN
LENGTH2.750 INCHES NOMINAL IN
INSIDE LENGTH1.130 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.186 INCHES NOMINAL IN
FLANGE THICKNESS0.320 INCHES NOMINAL IN
FIRST RECESS INSIDE HEIGHT0.320 INCHES NOMINAL IN
CORNER BEVEL LENGTH0.120 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.186 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESQUARE OR RECTANGULAR RECESS
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 2
6393438 FIND 005Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6393437 FIND 005Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 6393426-1?
6393426-1 is a COVER,ACCESS.
What parts can replace 6393426-1?
There are 2 known substitutes for 6393426-1: 6393438 FIND 005, 6393437 FIND 005. Substitute compatibility should be verified for your specific system.
What is the NSN for 6393426-1?
6393426-1 is cataloged in the U.S. Government catalog under NSN 5340-01-524-8301. 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.