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6539-50-702-8041 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

6539-50-702-8041: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.531 INCHES NOMINAL IN, length: 4.531 INCHES NOMINAL IN, hole_diameter: 0.468 INCHES NOMINAL IN, body_thickness: 0.375 INCHES NOMINAL IN, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, FOUR HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-131-0410, 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
6539-50-702-8041
NSN: 5340-01-131-0410
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
width4.531 INCHES NOMINAL IN
length4.531 INCHES NOMINAL IN
hole_diameter0.468 INCHES NOMINAL IN
body_thickness0.375 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, FOUR HOLES
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-131-0410
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 6539-50-702-8041 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
•
LENGTH: 4.531 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
PERIPHERAL SHAPE STYLE: RECTANGLE, FOUR HOLES
•
WIDTH: 4.531 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.468 INCHES NOMINAL IN
•
BODY THICKNESS: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LENGTH4.531 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
WIDTH4.531 INCHES NOMINAL IN
HOLE DIAMETER0.468 INCHES NOMINAL IN
BODY THICKNESS0.375 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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 6539-50-702-8041?
6539-50-702-8041 is a COVER,ACCESS.
What is the NSN for 6539-50-702-8041?
6539-50-702-8041 is cataloged in the U.S. Government catalog under NSN 5340-01-131-0410. 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.