MIL-DTL-17376/1A
GENERAL INFORMATION:
1. Part or identification number (PIN). The PINs to be used for caps acquired to this
detail specification are created as follows:
M 17376/1 X
Size: 1 = C17376/1-1 (3-1/8 UNS-1 thread) cap
2 = C17376/1-2 (3-1/2 UNS-1 thread) cap
Specification sheet number
General specification number
M prefix
INTENDED USE: The cylinder caps covered by the specification sheet and threaded to mated
flanges attached to the necks of compressed gas cylinders are intended to afford protection
against damage to cylinder valves during handling and transportation. The caps are removable
for access to the valves.
1-1/8 MIN.
OPTIONAL
ACROSS FLATS
HEXAGON WRENCHING
FLATS
3/8 MIN.
0.100 MIN.
WALL THK.
OPTIONAL
HEXAGONAL
CYLINDERICAL
OCTAGONAL
2 HOLES _180° APART 1" X 1/2"
MIN. SIZE SLOT, OR 1" MIN. DIA. ROUND
OPTIONAL
6"MIN./7"MAX.
CLEAR I.D.
3-3/8 MIN.
LONGITUDINAL REINFORCEMENT BENDS
OR INDENTATIONS. APPROXIMATELY 1/8"
DEEP INDENTATIONS
2 TAG HOLES _180° APART _
3/4
3/16" MIN. SIZE
MIN.
UNDERCUT FIRST THREAD
A
OR CHAMFERED
Size
Part number
Dimension A
1
C17376/1-1
3-1/8 UNS-1
2
C17376/1-2
3-1/2 UNS-1
Dimensions are in inches.
FIGURE 1. Cap.
2