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C87718 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

C87718: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 3.600 INCHES NOMINAL IN, length: 3.505 INCHES NOMINAL IN, material: ALUMINUM ALLOY, corner_radius: 0.298 INCHES NOMINAL IN, hole_diameter: 0.256 INCHES NOMINAL IN, body_thickness: 0.240 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-078-0639, 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
C87718
NSN: 5340-01-078-0639
FSC: 5340 — Hardware, Commercial
CAGE: 51034 — FL INDUSTRIES INC PNEUMOTIVE DIV (USA)
SPECIFICATIONS
width3.600 INCHES NOMINAL IN
length3.505 INCHES NOMINAL IN
materialALUMINUM ALLOY
corner_radius0.298 INCHES NOMINAL IN
hole_diameter0.256 INCHES NOMINAL IN
body_thickness0.240 INCHES NOMINAL IN
special_featuresITEM HAS TWO UNTHD HOLES 0.400 IN. DIA 1.450 IN. C TO C DIAGONAL ACROSS LG IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width6
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-078-0639
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: C87718 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: 0.553 INCHES NOMINAL IN
•
CORNER RADIUS: 0.298 INCHES NOMINAL IN
•
LENGTH: 3.505 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 1.135 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 2.375 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.553 INCHES NOMINAL IN
CORNER RADIUS0.298 INCHES NOMINAL IN
LENGTH3.505 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH1.135 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH2.375 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
HOLE QUANTITY ALONG WIDTH6
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.273 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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is C87718?
C87718 is a COVER,ACCESS.
What is the NSN for C87718?
C87718 is cataloged in the U.S. Government catalog under NSN 5340-01-078-0639. 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.