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Conforms to Federal Specification RR-C-271D, Type IVB, Grade A, Class 1
Ultimate load is 6 times working load limit
Quenched and tempered, with alloy pin
Proof load is 2.2 times working load limit
Ultimate load is 6 times working load limit

Chain shackles are typically used on wire rope loops for lifting or towing.

Round-Pin-Chain-Shackle
Unit of Measure
1 

Item #

Nominal Size (in)

WLL (Tons)

A (in)

B (in)

C (in)

D (in)

E (in)

F (in)

Weight (lbs)

RPCS14 N/A 1/4 N/A 1/2 N/A 0.47 N/A 0.31 N/A 0.25 N/A 0.88 N/A 0.25 N/A 0.61 N/A 0.11
RPCS516 N/A 5/16 N/A 3/4 N/A 0.53 N/A 0.38 N/A 0.31 N/A 1.03 N/A 0.31 N/A 0.75 N/A 0.18
RPCS38 N/A 3/8 N/A 1 N/A 0.66 N/A 0.44 N/A 0.38 N/A 1.25 N/A 0.38 N/A 0.91 N/A 0.25
RPCS716 N/A 7/16 N/A 1.5 N/A 0.75 N/A 0.5 N/A 0.44 N/A 1.44 N/A 0.44 N/A 1.06 N/A 0.4
RPCS12 N/A 1/2 N/A 2 N/A 0.81 N/A 0.63 N/A 0.5 N/A 1.63 N/A 0.5 N/A 1.19 N/A 0.5
RPCS58 N/A 5/8 N/A 3.25 N/A 1.06 N/A 0.75 N/A 0.62 N/A 2 N/A 0.63 N/A 1.5 N/A 1.21
RPCS34 N/A 3/4 N/A 4.75 N/A 1.25 N/A 0.88 N/A 0.81 N/A 2.38 N/A 0.75 N/A 1.81 N/A 2
RPCS78 N/A 7/8 N/A 6.5 N/A 1.44 N/A 1 N/A 0.97 N/A 2.81 N/A 0.88 N/A 2.09 N/A 3.28
RPCS1 N/A 1 N/A 8 1/2 N/A 1.69 N/A 1.13 N/A 1 N/A 3.19 N/A 1 N/A 2.38 N/A 4.75
RPCS118 N/A 1 1/8 N/A 9 1/2 N/A 1.81 N/A 1.25 N/A 1.25 N/A 3.58 N/A 1.13 N/A 2.69 N/A 6.3
RPCS114 N/A 1 1/4 N/A 12 N/A 2.03 N/A 1.38 N/A 1.38 N/A 3.94 N/A 1.25 N/A 3 N/A 9
RPCS138 N/A 1 3/8 N/A 13 1/2 N/A 2.25 N/A 1.5 N/A 1.5 N/A 4.38 N/A 1.38 N/A 3.31 N/A 12
RPCS112 N/A 1 1/2 N/A 17 N/A 2.38 N/A 1.63 N/A 1.62 N/A 4.81 N/A 1.5 N/A 3.62 N/A 16.15
RPCS134 N/A 1 3/4 N/A 25 N/A 2.88 N/A 2 N/A 2.12 N/A 5.75 N/A 1.75 N/A 4.19 N/A 29.96
RPCS2 N/A 2 N/A 35 N/A 3.25 N/A 2.25 N/A 2 N/A 6.75 N/A 2 N/A 4.81 N/A 43.25
RPCS212 N/A 2 1/2 N/A 55 N/A 4.13 N/A 2.75 N/A 2.62 N/A 8 N/A 2.62 N/A 5.69 N/A 73.33
Unit of Measure
1