TM 1-1500-204-23-2
Figure 4-69. External O-Ring Installation
(a) Stretching. Before Installing a Teflon spiral ring In an internal groove, stretch it slightly, as shown In figure 4-72 While
the Teflon ring is being put In the groove, turn the component in a clockwise direction (see figure 4-73). This will tend to
expand the ring diameter and will reduce the possibility of damage to the ring
Figure 4-70. Elliptical Ring
Figure 4-71. V-Ring Packings in Various Positions of Assembly
4-85