Muncy™ Open Bridge Bowl Sockets
- 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. |
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.
- Heavy Hex & Heavy Hex Jam Nuts
Open Bridge Bowl Sockets are Used With:
- Closed Bridge Bowl Sockets
