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42445-3 — COVER,ACCESS

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

42445-3: COVER,ACCESS.

The COVER,ACCESS is a the manufacturer industrial component. Key specifications include material: GLASS, corner_radius: 0.060 INCHES NOMINAL IN, width_across_flats: 4.860 INCHES MINIMUM AND 4.970 INCHES MAXIMUM IN, bolt_circle_diameter: 0.1258 INCHES MINIMUM AND 0.1283 INCHES MAXIMUM IN, securing_device_type: THREADED FASTENER, peripheral_shape_style: REGULAR POLYGON, MULTI HOLES. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-077-2694, 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
42445-3
NSN: 5340-01-077-2694
FSC: 5340 — Hardware, Commercial
CAGE: 09344 — ROCKWELL COLLINS, INC. DBA RC DISPLAYS SYSTEMS (USA)
SPECIFICATIONS
materialGLASS
corner_radius0.060 INCHES NOMINAL IN
corner_quantity8
width_across_flats4.860 INCHES MINIMUM AND 4.970 INCHES MAXIMUM IN
bolt_circle_diameter0.1258 INCHES MINIMUM AND 0.1283 INCHES MAXIMUM IN
securing_device_typeTHREADED FASTENER
peripheral_shape_styleREGULAR POLYGON, MULTI HOLES
bolt_circle_hole_quantity3
NSN5340-01-077-2694
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 42445-3 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
•
WIDTH ACROSS FLATS: 4.860 INCHES MINIMUM AND 4.970 INCHES MAXIMUM IN
•
CORNER QUANTITY: 8
•
CORNER RADIUS: 0.060 INCHES NOMINAL IN
•
BOLT CIRCLE HOLE QUANTITY: 3
•
SECURING DEVICE TYPE: THREADED FASTENER
•
BOLT CIRCLE DIAMETER: 0.1258 INCHES MINIMUM AND 0.1283 INCHES MAXIMUM IN
•
PERIPHERAL SHAPE STYLE: REGULAR POLYGON, MULTI HOLES
•
MATERIAL: GLASS
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS4.860 INCHES MINIMUM AND 4.970 INCHES MAXIMUM IN
CORNER QUANTITY8
CORNER RADIUS0.060 INCHES NOMINAL IN
BOLT CIRCLE HOLE QUANTITY3
SECURING DEVICE TYPETHREADED FASTENER
BOLT CIRCLE DIAMETER0.1258 INCHES MINIMUM AND 0.1283 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEREGULAR POLYGON, MULTI HOLES
MATERIALGLASS
SUBSTITUTES & CROSS-REFERENCES 1
42445-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 42445-3?
42445-3 is a COVER,ACCESS.
What parts can replace 42445-3?
There is 1 known substitute for 42445-3: 42445-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 42445-3?
42445-3 is cataloged in the U.S. Government catalog under NSN 5340-01-077-2694. This indicates validated use in U.S. government and defense supply chains.
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