Muncy Machine and Upson-Walton

Muncy™ Open Bridge Bowl Sockets

Open Bridge Bowl Socket
  • Also known as "Stirrup Assembly"
  • Zinc or Resin Poured
  • For use on structural strand and rope
  • Uses standard, 48" and 72" take-up
  • Upon request per Federal Specification
    RR-S-550E
Stock Number Rope Size (inch) Strand Size (inch) Thread size Cotter Pin Diameter Ultimate
Load
Min.
Socketing
Media (CC)
Weight Each Set
Take-Up Length Take-up
Standard 48" 72" Standard 48" 72"
F-2506-O F-2506-O-48 F-2506-O-72 1/2" 1/2" 5/8" - 11 1/4 18 45 11 16 21
F-2507-O F-2507-O-48 F-2507-O-72 5/8" 9/16" - 5/8" 3/4" - 10 1/4 26 77 20 28 34
F-2508-O F-2508-O-48 F-2508-O-72 3/4" - 7/8" 11/16" - 3/4" 1" - 8 1/4 47 145 36 49 59
F-4476-O F-4476-O-48 F-4476-O-72 1" 13/16" - 7/8" 1-1/8" - 7 1/4 59 214 53 68 81
F-4477-O F-4477-O-48 F-4477-O-72 1-1/8" 15/16" - 1" 1-1/4" - 7 3/8 75 328 72 89 106
F-4478-O F-4478-O-48 F-4478-O-72 1-1/4" 1-1/16" - 1-1/8" 1-3/8" - 6 3/8 89 348 93 110 130
F-4479-O F-4479-O-48 F-4479-O-72 1-3/8" 1-3/16"- 1-1/4" 1-5/8" - 5-1/2 3/8 108 463 134 156 184
F-4480-O F-4480-O-48 F-4480-O-72 1-1/2" 1-5/16" - 1-3/8" 1-3/4" - 5 1/2 147 586 165 190 222
F-4481-O F-4481-O-48 F-4481-O-72 1-5/8" - 1-3/4" 1-7/16" - 1-1/2" 2" - 4-1/2 1/2 193 847 210 267 309
F-4482-O F-4482-O-48 F-4482-O-72 1-7/8" - 2" 1-9/16" - 1-3/4" 2-1/4" - 4-1/2 1/2 250 1,191 286 358 412
F-4483-O F-4483-O-48 F-4483-O-72 2-1/8" - 2-1/4" 1-13/16" - 2" 2-1/2" - 4 1/2 315 1,714 408 490 556
F-4484-O F-4484-O-48 F-4484-O-72 2-3/8" - 2-1/2" 2-1/16" - 2-1/4" 2-3/4" - 4 5/8 388 2,528 557 655 735
F-4485-O F-4485-O-48 F-4485-O-72 2-5/8" - 2-3/4" 2-5/16" - 2-3/8" 3" - 4 5/8 468 3,296 697 812 908
F-4486-O F-4486-O-48 F-4486-O-72 2-7/8" - 3" 2-7/16" - 2-5/8" 3-1/4" - 4 5/8 556 4,226 895 1,022 1,134
F-4487-O F-4487-O-48 F-4487-O-72 3-1/4" 2-11/16" - 2-3/4" 3-1/2" - 4 5/8 651 4,778 989 1,130 1,260
F-4488-O F-4488-O-48 F-4488-O-72 3-1/2" 2-7/8" - 3" 3-3/4" - 4 5/8 754 7,033 1,380 1,541 1,691
F-4489-O F-4489-O-48 F-4489-O-72 3-3/4" 3-1/8" - 3-1/4" 4" - 4 5/8 816 8,188 1,605 1,769 1,939
F-4490-O F-4490-O-48 F-4490-O-72 N/A 3-3/8" - 3-1/2" 4-1/4" - 4 3/4 816 9,732 1,891 2,077 2,269
F-4491-O F-4491-O-48 F-4491-O-72 4" 3-5/8" - 3-3/4" 4-1/2" - 4 3/4 1,045 12,304 2,252 2,461 2,676
F-4492-O F-4492-O-48 F-4492-O-72 4-1/4" 3-7/8" - 4" 4-3/4" - 4 3/4 1,170 15,461 2,707 2,939 3,178

Dimensions
Stock Number

Std.
Take-up
(Inches)

A C d D E J K O TH Y Thread size Cotter Pin Diameter
Take-up
Std. 48" 72" Std. 48" 72" Std. 48" 72"
F-2506 9 20 59 83 3-3/8 5/8 1-5/16 14-1/2 53-1/2 77-1/2 3-1/8 2-1/16 1-1/4 10-1/2 49-1/2 73-1/2 4-5/8 5/8" - 11 1/4
F-2507 9 22 61 85 4-3/8 3/4 1-3/8 15 54 78 3-13/16 2-7/16 1-1/2 10-3/4 49-3/4 73-3/4 5-7/8 3/4" - 10 1/4
F-2508 9 23 62 86 4-11/16 1 1-5/8 16-1/2 55-1/2 79-1/2 4-7/16 3-1/4 1-3/4 11-1/4 50-1/4 74-1/4 6-9/16 1" - 8 1/4
F-4476 9 25 64 88 5-3/16 1-1/8 2 17 56 80 5-1/16 3-11/16 2 11-1/2 50-1/2 74-1/2 7-5/16 1-1/8" - 7 1/4
F-4477 9 26 65 89 5-3/4 1-1/4 2-1/4 18-1/2 57-1/2 81-1/2 6 4-1/16 2-1/4 11-3/4 50-3/4 74-3/4 8-1/8 1-1/4" - 7 3/8
F-4478 12 30 66 90 6 1-3/8 2-1/2 21-1/2 57-1/2 81-1/2 5-13/16 4-1/2 2-1/2 15 51 75 8-5/8 1-3/8" - 6 3/8
F-4479 12 33 69 93 6-3/4 1-5/8 2-3/4 22-1/2 58-1/2 82-1/2 6-3/8 4-7/8 3 15-1/2 51-1/2 75-1/2 9-3/4 1-5/8" - 5-1/2 3/8
F-4480 12 34 70 94 7-3/16 1-3/4 3 23-1/2 59-1/2 83-1/2 6-15/16 5-5/16 3 15-3/4 51-3/4 75-3/4 10-7/16 1-3/4" - 5 1/2
F-4481 15 39 72 96 8-1/8 2 3-1/2 27 60 84 7-5/16 6-1/2 3-1/2 19-1/4 52-1/4 76-1/4 11-3/4 2" - 4-1/2 1/2
F-4482 15 42 75 99 9 2-1/4 3-3/4 28-1/2 61-1/2 85-1/2 8-1/8 7-5/16 4 19-3/4 52-3/4 76-3/4 13-1/8 2-1/4" - 4-1/2 1/2
F-4483 18 50 80 104 10-1/4 2-1/2 4-1/4 33 63 87 9-5/16 8-1/8 4-1/2 23-1/4 53-1/4 77-1/4 14-3/4 2-1/2" - 4 1/2
F-4484 18 52 82 106 11-1/2 2-3/4 4-3/4 35-1/2 65-1/2 89-1/2 10-7/8 8-15/16 5 23-3/4 53-3/4 77-3/4 16-1/2 2-3/4" - 4 5/8
F-4485 18 54 84 108 12-11/16 3 5 36-1/2 66-1/2 90-1/2 11-13/16 9-3/4 5-3/8 24-1/4 54-1/4 78-1/4 18-1/16 3" - 4 5/8
F-4486 21 59 86 110 13-3/8 3-1/4 5-3/4 41 68 92 12-13/16 10-9/16 6 27-3/4 54-3/4 78-3/4 19-1/4 3-1/4" - 4 5/8
F-4487 21 61 88 112 14-1/16 3-1/2 5-3/4 42-1/2 69-1/2 93-1/2 13 9-7/8 6-1/4 28-1/4 55-1/4 79-1/4 20-5/16 3-1/2" - 4 5/8
F-4488 21 63 90 114 15-1/4 3-3/4 6-3/4 45 72 96 15-1/2 12-3/16 7-1/2 28-3/4 55-3/4 79-3/4 22 3-3/4" - 4 5/8
F-4489 24 70 94 118 17-1/4 4 7 50 74 98 16 11-5/16 7-3/4 32-1/4 56-1/4 80-1/4 24-1/2 4" - 4 5/8
F-4490 24 75 99 123 18-5/16 4-1/4 7-1/4 53 77 101 16-3/4 11-7/8 8 32-3/4 56-3/4 80-3/4 26-1/16 4-1/4" - 4 3/4
F-4491 24 80 104 128 19-3/8 4-1/2 7-1/2 55-1/2 79-1/2 103-1/2 18-3/16 12-3/4 8-1/4 33-1/4 57-1/4 81-1/4 27-5/8 4-1/2" - 4 3/4
F-4492 24 85 109 133 20-7/16 4-3/4 7-3/4 57-1/2 81-1/2 105-1/2 20 13-7/16 8-1/2 33-3/4 57-3/4 81-3/4 29-7/16 4-3/4" - 4 3/4

CAUTION

Open Bridge Bowl sockets are recommended for use on 6x7, 6x19, and 6x37, IPS, XIP (EIP), XXIP (EEIP), RRL, FC, OR IWRC wire ropes. They are also approved for use on bridge ropes and structural strand. Before using spelter sockets with other type, lay, construction, or grade of wire rope, it is recommended that the termination be tested to prove the adequacy of the assembly in the intended application. Assembly by Zinc or Resin pouring should always be performed by trained and competent personnel only. Proper assembly practices are the assembly manufacturer’s responsibility.