Airport Castings : Spring Assist Hatches

Neenah Foundry offers a variety of cast iron spring assist hatches for use in airport settings. Select from the list below to find the airport manhole frames and grates that fit your needs.

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Catalog Number Description Square/Rectangular Grate Type Square Feet Open Weir Perimeter Lineal Feet A B C D E Lid Weight
R-3498-R3GS Spring Assist Hatches Rectangular 76-9/16 x 38-3/8 1-1/2 74-3/16 x 36 80-3/16 x 42 4 471#
R-3498-R3S Spring Assist Hatches Rectangular 76-9/16 x 38-3/8 1-1/2 74-3/16 x 36 80-3/16 x 42 4 471#
R-3498-J3S Spring Assist Hatches Rectangular 25-7/8 x 37-7/8 1-1/2 36 x 24 42 x 30 4 340#
R-3498-T2S Spring Assist Hatches Square 50 x 50 1-1/2 48 x 48 56 x 56 4 571#
R-3498-R2GS Spring Assist Hatches Square 38 x 38 1-1/2 36 x 36 42 x 42 4 471#
R-3498-R2S Spring Assist Hatches Square 38 x 38 1-1/2 36 x 36 42 x 42 4 471#
R-3498-P2GS Spring Assist Hatches Square 32x 32 1-1/2 30 x 30 36 x 36 4 358#
R-3498-P2S Spring Assist Hatches Square 32x 32 1-1/2 30 x 30 36 x 36 4 358#
R-3498-K2GS Spring Assist Hatches Square 25-3/4 x 25-3/4 1-1/2 24 x 24 30 x 30 4 251#
R-3498-K2S Spring Assist Hatches Square 25-3/4 x 25-3/4 1-1/2 24 x 24 30 x 30 4 251#
R-3498-R3 Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Rectangular 76-9/16 x 38-3/8 1-1/2 74-3/16 x 36 80-3/16 x 42 4 856#
R-3498-R2 Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Square 38 x 38 1-1/2 36 x 36 42 x 42 4 428#
R-3498-P2G Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Square 31-1/2 x 31-1/2 1-1/2 30 x 30 36 x 36 4 364#
R-3498-P2 Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Square 31-1/2 x 31-1/2 1-1/2 30 x 30 36 x 36 4 364#
R-3498-K2G Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Square 25-3/4 x 25-3/4 1-1/2 24 x 24 30 x 30 4 230#
R-3498-K2 Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 Square 25-3/4 x 25-3/4 1-1/2 24 x 24 30 x 30 4 230#
R-3498-R3GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 A 6.0 19.0
R-3498-R2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 C 3.0 12.8
R-3498-R2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 A 3.0 12.8
R-3498-P2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 C 2.1 10.5
R-3498-P2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 A 2.1 10.5
R-3498-K2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 C 1.5 8.6
R-3498-K2GS Gray Iron Frames with Ductile Iron Lids – Proof Load Tested to 200,000# Patent #7216459 A 1.5 8.6
All dimensions are listed in inches unless otherwise noted.
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