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5816538 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5816538: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 0.705 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN, material: ALUMINUM ALLOY 6061, body_thickness: 0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN, surface_treatment: ANODIZE, peripheral_shape_style: OVAL, ONE HOLE, end_item_identification: FLEET EXERCISE SYSTEM,TORPEDO MK50. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-326-3585, 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
5816538
NSN: 5340-01-326-3585
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
width0.705 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN
materialALUMINUM ALLOY 6061
body_thickness0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM IN
surface_treatmentANODIZE
peripheral_shape_styleOVAL, ONE HOLE
end_item_identificationFLEET EXERCISE SYSTEM,TORPEDO MK50
cross-sectional_shape_styleARCHED
material_document_and_classificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625,TYPE 3,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-326-3585
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5816538 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE 3,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ARCHED
•
SURFACE TREATMENT: ANODIZE
•
PERIPHERAL SHAPE STYLE: OVAL, ONE HOLE
•
WIDTH: 0.705 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625,TYPE 3,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEARCHED
SURFACE TREATMENTANODIZE
PERIPHERAL SHAPE STYLEOVAL, ONE HOLE
WIDTH0.705 INCHES MINIMUM AND 0.715 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONFLEET EXERCISE SYSTEM,TORPEDO MK50
MATERIALALUMINUM ALLOY 6061
BODY THICKNESS0.183 INCHES MINIMUM AND 0.193 INCHES MAXIMUM 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 5816538?
5816538 is a COVER,ACCESS.
What is the NSN for 5816538?
5816538 is cataloged in the U.S. Government catalog under NSN 5340-01-326-3585. 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.