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25513-503 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

25513-503: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024, special_features: BOTTOM, fsc_application_data: AIM-9 SCS, securing_device_type: SPECIAL, peripheral_shape_style: RECTANGLE, MULTI HOLES, end_item_identification: P/N 25079-503. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-252-9781, 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
25513-503
NSN: 5340-01-252-9781
FSC: 5340 — Hardware, Commercial
CAGE: 30377 — SMITHS AEROSPACE, INC., ELECTRONIC SYSTEMS-GRAND RAPIDS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
special_featuresBOTTOM
fsc_application_dataAIM-9 SCS
securing_device_typeSPECIAL
peripheral_shape_styleRECTANGLE, MULTI HOLES
end_item_identificationP/N 25079-503
hole_quantity_along_width4
hole_quantity_along_length2
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-252-9781
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 25513-503 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
•
FSC APPLICATION DATA: AIM-9 SCS
•
HOLE QUANTITY ALONG LENGTH: 2
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: SPECIAL
•
HOLE QUANTITY ALONG WIDTH: 4
•
PERIPHERAL SHAPE STYLE: RECTANGLE, MULTI HOLES
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAAIM-9 SCS
HOLE QUANTITY ALONG LENGTH2
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPESPECIAL
HOLE QUANTITY ALONG WIDTH4
SPECIAL FEATURESBOTTOM
PERIPHERAL SHAPE STYLERECTANGLE, MULTI HOLES
END ITEM IDENTIFICATIONP/N 25079-503
MATERIALALUMINUM ALLOY 2024
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 25513-503?
25513-503 is a COVER,ACCESS.
What is the NSN for 25513-503?
25513-503 is cataloged in the U.S. Government catalog under NSN 5340-01-252-9781. 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.