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5543290 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5543290: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 11.500 INCHES NOMINAL IN, length: 11.880 INCHES NOMINAL IN, material: ALUMINUM ALLOY 6061, hole_diameter: 0.170 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN, body_thickness: 0.063 INCHES NOMINAL IN, special_features: CAUTION PLATE RIVETED TO COVER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-311-6370, 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
5543290
NSN: 5340-01-311-6370
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
width11.500 INCHES NOMINAL IN
length11.880 INCHES NOMINAL IN
materialALUMINUM ALLOY 6061
hole_diameter0.170 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN
body_thickness0.063 INCHES NOMINAL IN
special_featuresCAUTION PLATE RIVETED TO COVER
surface_treatmentPLASTIC
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
hole_quantity_along_width24
hole_quantity_along_length18
cross-sectional_shape_styleFLAT
NSN5340-01-311-6370
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5543290 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: 0.480 INCHES NOMINAL IN
•
LENGTH: 11.880 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 0.818 INCHES NOMINAL AND 1.155 INCHES NOMINAL IN
•
HOLE QUANTITY ALONG LENGTH: 18
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 1.000 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.480 INCHES NOMINAL IN
LENGTH11.880 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83286 MIL SPEC SINGLE TREATMENT RESPONSE
DISTANCE BETWEEN HOLES ALONG LENGTH0.818 INCHES NOMINAL AND 1.155 INCHES NOMINAL IN
HOLE QUANTITY ALONG LENGTH18
DISTANCE BETWEEN HOLES ALONG WIDTH1.000 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5543290?
5543290 is a COVER,ACCESS.
What is the NSN for 5543290?
5543290 is cataloged in the U.S. Government catalog under NSN 5340-01-311-6370. 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.