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74A551049-2001 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

74A551049-2001: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: PLASTIC, hole_diameter: 0.218 INCHES NOMINAL IN, body_thickness: 0.250 INCHES NOMINAL IN, outside_diameter: 2.940 INCHES NOMINAL IN, bolt_circle_diameter: 2.125 INCHES NOMINAL IN, securing_device_type: SPECIAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-156-9031, 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
74A551049-2001
NSN: 5340-01-156-9031
FSC: 5340 — Hardware, Commercial
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialPLASTIC
hole_diameter0.218 INCHES NOMINAL IN
body_thickness0.250 INCHES NOMINAL IN
outside_diameter2.940 INCHES NOMINAL IN
bolt_circle_diameter2.125 INCHES NOMINAL IN
securing_device_typeSPECIAL
peripheral_shape_styleROUND, MULTI HOLES
bolt_circle_hole_quantity5
cross-sectional_shape_styleFLAT W/OPEN CENTER
mounting_opening_shape_styleUNTHREADED HOLE
NSN5340-01-156-9031
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 74A551049-2001 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: 5
•
MOUNTING OPENING SHAPE STYLE: UNTHREADED HOLE
•
CROSS-SECTIONAL SHAPE STYLE: FLAT W/OPEN CENTER
•
OUTSIDE DIAMETER: 2.940 INCHES NOMINAL IN
•
SECURING DEVICE TYPE: SPECIAL
•
BOLT CIRCLE DIAMETER: 2.125 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND, MULTI HOLES
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS
BOLT CIRCLE HOLE QUANTITY5
MOUNTING OPENING SHAPE STYLEUNTHREADED HOLE
CROSS-SECTIONAL SHAPE STYLEFLAT W/OPEN CENTER
OUTSIDE DIAMETER2.940 INCHES NOMINAL IN
SECURING DEVICE TYPESPECIAL
BOLT CIRCLE DIAMETER2.125 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND, MULTI HOLES
MATERIALPLASTIC
HOLE DIAMETER0.218 INCHES NOMINAL IN
BODY THICKNESS0.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
10104821Reference document
Same NSN cross-reference
Reference document — Informative reference only
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 74A551049-2001?
74A551049-2001 is a COVER,ACCESS.
What parts can replace 74A551049-2001?
There is 1 known substitute for 74A551049-2001: 10104821. Substitute compatibility should be verified for your specific system.
What is the NSN for 74A551049-2001?
74A551049-2001 is cataloged in the U.S. Government catalog under NSN 5340-01-156-9031. This indicates validated use in U.S. government and defense supply chains.
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