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7090-20-111-2102 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7090-20-111-2102: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 4.250 INCHES NOMINAL IN, length: 3.600 INCHES NOMINAL IN, material: ALUMINUM ALLOY 7075 AND ALUMINUM ALLOY 6061, peripheral_shape_style: RECTANGLE, MULTI HOLES, mounting_opening_shape_style: UNTHREADED HOLE, distance_between_holes_along_width: 1.875 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-399-6539, 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
7090-20-111-2102
NSN: 5340-01-399-6539
FSC: 5340 — Hardware, Commercial
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
width4.250 INCHES NOMINAL IN
length3.600 INCHES NOMINAL IN
materialALUMINUM ALLOY 7075 AND ALUMINUM ALLOY 6061
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width3
hole_quantity_along_length7
mounting_opening_shape_styleUNTHREADED HOLE
distance_between_holes_along_width1.875 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_width0.718 INCHES NOMINAL IN
distance_from_first_hole_centerline_to_end_along_length0.540 INCHES NOMINAL IN
NSN5340-01-399-6539
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7090-20-111-2102 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: 0.718 INCHES NOMINAL IN
•
LENGTH: 3.600 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 7
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 1.875 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
HOLE QUANTITY ALONG WIDTH: 3
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH: 0.540 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: RECTANGLE, MULTI HOLES
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.718 INCHES NOMINAL IN
LENGTH3.600 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH7
DISTANCE BETWEEN HOLES ALONG WIDTH1.875 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
HOLE QUANTITY ALONG WIDTH3
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.540 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLERECTANGLE, MULTI HOLES
WIDTH4.250 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 7075 AND ALUMINUM ALLOY 6061
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7090-20-111-2102?
7090-20-111-2102 is a COVER,ACCESS.
What is the NSN for 7090-20-111-2102?
7090-20-111-2102 is cataloged in the U.S. Government catalog under NSN 5340-01-399-6539. 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.