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7449542-2 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

7449542-2: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 356.0, body_thickness: 1.387 INCHES NOMINAL IN, outside_diameter: 12.250 INCHES NOMINAL IN, peripheral_shape_style: ROUND, MULTI HOLES, end_item_identification: MK44MOD1 TARG, cross-sectional_shape_style: FLAT, ROUND RIB REINFORCED. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-503-2098, 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
7449542-2
NSN: 5340-01-503-2098
FSC: 5340 — Hardware, Commercial
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 356.0
body_thickness1.387 INCHES NOMINAL IN
outside_diameter12.250 INCHES NOMINAL IN
peripheral_shape_styleROUND, MULTI HOLES
end_item_identificationMK44MOD1 TARG
bolt_circle_hole_quantity6
cross-sectional_shape_styleFLAT, ROUND RIB REINFORCED
NSN5340-01-503-2098
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 7449542-2 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
•
BOLT CIRCLE HOLE QUANTITY: 6
•
CROSS-SECTIONAL SHAPE STYLE: FLAT, ROUND RIB REINFORCED
•
OUTSIDE DIAMETER: 12.250 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
MATERIAL: ALUMINUM ALLOY 356.0
•
BODY THICKNESS: 1.387 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY6
CROSS-SECTIONAL SHAPE STYLEFLAT, ROUND RIB REINFORCED
OUTSIDE DIAMETER12.250 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
END ITEM IDENTIFICATIONMK44MOD1 TARG
MATERIALALUMINUM ALLOY 356.0
BODY THICKNESS1.387 INCHES NOMINAL IN
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)Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is 7449542-2?
7449542-2 is a COVER,ACCESS.
What is the NSN for 7449542-2?
7449542-2 is cataloged in the U.S. Government catalog under NSN 5340-01-503-2098. 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.