4″ Access Ports
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4″ Access Ports

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Part Number Cover Hole Diameter Clear Opening Diameter Cover Diameter Mounting Hole Diameter Weight
TA495 None 3.40″ (86 mm) 4.50″ (114 mm) 4.015″ (102 mm) 0.95 lbs (431 grams)
TA495-3 1.050″ (26 mm) 3.40″ (86 mm) 4.50″ (114 mm) 4.015″ (102 mm) 0.95 lbs (431 grams)
TA495-4 1.265″ (32 mm) 3.40″ (86 mm) 4.50″ (114 mm) 4.015″ (102 mm) 0.95 lbs (431 grams)
TA495-5 2.015″ (52 mm) 3.40″ (86 mm) 4.50″ (114 mm) 4.015″ (102 mm) 0.91 lbs (413 grams)

4″ Access Ports (TA495 series) provide access to desiccant, data or accessory storage areas in containers, eliminating the labor of opening the container, and reducing the exposure of the contents to hostile environments. An access port can also be used to provide access to a container for diagnostic testing of its contents.

AGM’s 4″ Access Ports feature a 1/4-turn cover that can be removed without tools.

The TA495-3 has a 1.050 in. (26 mm) dia. hole in cover for mounting Series TA238, TA240-R, TA330, TA333-R, or TA340-R Two-Way Pressure Relief Valves. (Order valves separately)

The TA495-4 has a 1.265 in (32 mm) dia. hole in cover for mounting a TA440 Breather Valve. (Order valves separately)

The TA495-5 has a 2.015 in. (52 mm) dia. hole in cover for mounting a TA770-R Two-Way Pressure Relief Valve. (Order valves separately)

Installation: Each port is provided with a gasket, washer and spanner nut for mounting the port to the container. AGM’s ports are designed for mounting on a smooth, flat surface; they may not seal tightly if a surface is curved, domed or too rough.

Tamper-Proof: Holes through cover and flange of Access Port are provided for safety wiring and an inspector’s seal.

Materials and Finishes: Aluminum alloys, conversion coated per MIL-DTL-5541. Mounting nut finishes are conversion coated. Note: Mounting Nut additionally coated with dry film lube. Stainless steel cover, passivated. Buna-N o-ring and gasket.

Torque Value for Spanner Nut: 150 lb. in. (17 N•m)

Rated Pressure: 5.0 PSID

Required mounting hole diameter: 4.015 + 0.030 / – 0.015 inches

The TA495 (solid cover)is appropriate for use on NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13 enclosures, as well as I66/IP67 enclosures. This item may also be appropriate for use on other NEMA or IP enclosures, depending upon the application. Contact AGM’s Engineering department for more information.

A version of this port that meets SAE AS5135 is available. Contact AGM’s Sales department for more information.

TA495 Access Ports

Additional information

Weight 0.0000 lbs
Dimensions 0.0000 × 0.0000 × 0.0000 in
Cover Hole Diameter

, , ,

Cover Finish

Passivated

Internal O-Ring Material

Buna-N

Body Material

Aluminum Alloys

Clear Opening Diameter

3.40" (86 mm)

Body Finish

Conversion Coated

Applicable Specifications

A version of this port that meets SAE AS5135 is available upon request.

Mounting Hole Diameter

4.015" (102 mm)

External Gasket Material

Buna-N

Cable Material

Stainless Steel

Cover Material

Stainless Steel

IP/NEMA Rating

This is appropriate for use on NEMA 1, 2, 3, 3R, 3S, 4, 5, 6, 12, 12K, and 13 enclosures, as well as I66/IP67 enclosures. This item may also be appropriate for use on other NEMA or IP enclosures, depending upon the application.

Rated Pressure

5.0 PSID

Cover Diameter

4.50" (114 mm)

Drawing