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2A4522 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

2A4522: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include width: 1.875 INCHES NOMINAL IN, length: 2.875 INCHES NOMINAL IN, material: STEEL, body_radius: 0.938 INCHES NOMINAL IN, corner_radius: 0.438 INCHES NOMINAL IN, hole_diameter: 0.406 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-423-8718, 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
2A4522
NSN: 5340-00-423-8718
FSC: 5340 — Hardware, Commercial
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
width1.875 INCHES NOMINAL IN
length2.875 INCHES NOMINAL IN
materialSTEEL
body_radius0.938 INCHES NOMINAL IN
corner_radius0.438 INCHES NOMINAL IN
hole_diameter0.406 INCHES NOMINAL IN
body_thickness0.250 INCHES NOMINAL IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleDIAMOND, ROUNDED CORNERS, TWO HOLES
cross-sectional_shape_styleFLAT
mounting_opening_shape_styleUNTHREADED HOLE
distance_between_holes_along_length2.000 INCHES NOMINAL IN
NSN5340-00-423-8718
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 2A4522 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: 0.438 INCHES NOMINAL IN
•
LENGTH: 2.875 INCHES NOMINAL IN
•
DISTANCE BETWEEN HOLES ALONG LENGTH: 2.000 INCHES NOMINAL IN
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT
•
SECURING DEVICE TYPE: THREADED FASTENER
•
BODY RADIUS: 0.938 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: DIAMOND, ROUNDED CORNERS, TWO HOLES
TECHNICAL CHARACTERISTICS
CORNER RADIUS0.438 INCHES NOMINAL IN
LENGTH2.875 INCHES NOMINAL IN
DISTANCE BETWEEN HOLES ALONG LENGTH2.000 INCHES NOMINAL IN
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT
SECURING DEVICE TYPETHREADED FASTENER
BODY RADIUS0.938 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEDIAMOND, ROUNDED CORNERS, TWO HOLES
WIDTH1.875 INCHES NOMINAL IN
MATERIALSTEEL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2A4522?
2A4522 is a COVER,ACCESS.
What is the NSN for 2A4522?
2A4522 is cataloged in the U.S. Government catalog under NSN 5340-00-423-8718. 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.