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502309-1 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

502309-1: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include outside_diameter: 2.016 INCHES NOMINAL IN, style_designator: CIRCULAR, aperture_diameter: 1.766 INCHES NOMINAL IN, cross-sectional_thickness: 0.062 INCHES NOMINAL IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION, environmental_attribute_code: ASBESTOS ALTERNATIVE PRODUCTS. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-088-2885, 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
502309-1
NSN: 5340-01-088-2885
NIINs: 010882885, 013833805
FSC: 5340 — Hardware, Commercial
CAGE: 26101 — AAR ALLEN SERVICES, INC DBA AAR COMPONENT SERVICES WELLINGTON (USA)
SPECIFICATIONS
outside_diameter2.016 INCHES NOMINAL IN
style_designatorCIRCULAR
aperture_diameter1.766 INCHES NOMINAL IN
cross-sectional_thickness0.062 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
environmental_attribute_codeASBESTOS ALTERNATIVE PRODUCTS
NSN5340-01-088-2885
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 502309-1 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
•
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH: 0.143 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
•
CORNER RADIUS: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
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LENGTH: 1.710 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN
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DISTANCE BETWEEN HOLES ALONG LENGTH: 1.093 INCHES NOMINAL AND 1.281 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG WIDTH: 0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
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MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
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CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
TECHNICAL CHARACTERISTICS
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG WIDTH0.143 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
CORNER RADIUS0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
LENGTH1.710 INCHES MINIMUM AND 1.730 INCHES MAXIMUM IN
DISTANCE BETWEEN HOLES ALONG LENGTH1.093 INCHES NOMINAL AND 1.281 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG WIDTH0.745 INCHES MINIMUM AND 0.755 INCHES MAXIMUM IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
DISTANCE FROM FIRST HOLE CENTERLINE TO END ALONG LENGTH0.182 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLERECTANGLE, FOUR HOLES
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)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 502309-1?
502309-1 is a COVER,ACCESS.
What is the NSN for 502309-1?
502309-1 is cataloged in the U.S. Government catalog under NSN 5340-01-088-2885. 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.