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5759376-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

5759376-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 6061, hole_diameter: 0.257 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN, body_thickness: 0.750 INCHES NOMINAL IN, outside_diameter: 9.960 INCHES MINIMUM AND 9.970 INCHES MAXIMUM IN, special_features: 0.272 DIA HOLE THRU BOSS PER MS33649-02 2 PLACES, surface_treatment: PAINT POLYURETHANE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-208-8143, 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
5759376-1
NSN: 5340-01-208-8143
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
hole_diameter0.257 INCHES MINIMUM AND 0.261 INCHES MAXIMUM IN
body_thickness0.750 INCHES NOMINAL IN
outside_diameter9.960 INCHES MINIMUM AND 9.970 INCHES MAXIMUM IN
special_features0.272 DIA HOLE THRU BOSS PER MS33649-02 2 PLACES
surface_treatmentPAINT POLYURETHANE
bolt_circle_diameter9.400 INCHES NOMINAL IN
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity8
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
material_document_and_classificationQQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-208-8143
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 5759376-1 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-C-83286,COLOR CLEAR MIL SPEC SINGLE TREATMENT RESPONSE
•
BOLT CIRCLE HOLE QUANTITY: 8
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
OUTSIDE DIAMETER: 9.960 INCHES MINIMUM AND 9.970 INCHES MAXIMUM IN
•
BOLT CIRCLE DIAMETER: 9.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-83286,COLOR CLEAR MIL SPEC SINGLE TREATMENT RESPONSE
BOLT CIRCLE HOLE QUANTITY8
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/11 T6 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEFLAT
OUTSIDE DIAMETER9.960 INCHES MINIMUM AND 9.970 INCHES MAXIMUM IN
BOLT CIRCLE DIAMETER9.400 INCHES NOMINAL IN
SPECIAL FEATURES0.272 DIA HOLE THRU BOSS PER MS33649-02 2 PLACES
SURFACE TREATMENTPAINT POLYURETHANE
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
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 5759376-1?
5759376-1 is a COVER,ACCESS.
What is the NSN for 5759376-1?
5759376-1 is cataloged in the U.S. Government catalog under NSN 5340-01-208-8143. 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.