MIL-DTL-27426 Rings, Retaining, Spiral \(Uniform Cross Section\)This specification covers the procurement requirements for uniform cross section spiral retaining rings used on shafts and in bearing housings.

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MIL-DTL-27426C

3.4.8 Dish. Dish shall be considered the height difference in the ring cross-

sections axis of symmetry between the I.D. and O.D. as illustrated in

Figure 1. Dish shall be minimized to the extent possible and not exceed the values of

Table V.

FIGURE 1

TABLE V

RING RADIAL WALL

MAX. ALLOWABLE DISH

.000" - .039"

.001"

.040" - .069"

.002"

.070" - .099"

.003"

.100" - .129"

.004"

.130" - .159"

.005"

.160" - .194"

.006"

.195" � .224"

.007"

.225" - .259"

.008"

.260" - .294"

.009"

.295" - .339"

.010"

.340" - .394"

.011"

.395" - .474"

.012"

.475" - .649"

.013"

.650" � 1.000"

.014"