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503636 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

503636: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 5.250 INCHES NOMINAL IN, length: 7.750 INCHES NOMINAL IN, material: ALUMINUM ALLOY 5052, corner_radius: 0.250 INCHES NOMINAL IN, body_thickness: 0.125 INCHES NOMINAL IN, special_features: TAPPED HOLE 6-32 UNC 2B. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-125-1837, 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
503636
NSN: 5340-01-125-1837
FSC: 5340 — Hardware, Commercial
CAGE: 20284 — AIMTRON SYSTEMS, LLC (USA)
SPECIFICATIONS
width5.250 INCHES NOMINAL IN
length7.750 INCHES NOMINAL IN
materialALUMINUM ALLOY 5052
corner_radius0.250 INCHES NOMINAL IN
body_thickness0.125 INCHES NOMINAL IN
special_featuresTAPPED HOLE 6-32 UNC 2B
surface_treatmentPAINT
securing_device_typeSPECIAL
bolt_circle_hole_quantity10
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleTHREADED HOLE
distance_between_holes_along_length7.250 INCHES NOMINAL IN
NSN5340-01-125-1837
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 503636 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
•
CORNER RADIUS: 0.250 INCHES NOMINAL IN
•
LENGTH: 7.750 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAVSHIPS 0967-052-8280 NATIONAL SPEC SINGLE TREATMENT RESPONSE
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 7.250 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 10
•
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH: 2.250 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: THREADED HOLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
CORNER RADIUS0.250 INCHES NOMINAL IN
LENGTH7.750 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAVSHIPS 0967-052-8280 NATIONAL SPEC SINGLE TREATMENT RESPONSE
DISTANCE BETWEEN HOLES ALONG LENGTH7.250 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY10
DISTANCE BETWEEN HOLE CENTERLINE AND FIRST HOLE ALONG LENGTH2.250 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLETHREADED HOLE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-250/8 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 503636?
503636 is a COVER,ACCESS.
What is the NSN for 503636?
503636 is cataloged in the U.S. Government catalog under NSN 5340-01-125-1837. 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.