MS28921C
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are for information only.
3. Hose assembly lengths (L) shall be as specified with the following tolerances:
a. Under 18 inches (0.46 m) long (± .13 inch (3.3 mm)).
b. Over 18 to 36 inches (0.46 to 0.91 m) long (± .25 inch (6.4 mm)). c. Over 36 to 50 inches long (0.91 to 1.27 m) (± .50 inch (12.7 mm)). d. Over 50 inches long (Tolerance ± 1%).
4. Dash size number refers to the nominal outside diameter of the passageway in sixteenths (1/16)
of an inch. A dash 8 (-8) has an outside diameter of one-half inch (8/16).
5. Part or Identifying Number (PIN).
FIGURE 1. Hose assembly, flared tube dimensions and configuration - Continued.
REQUIREMENTS:
Hose assemblies shall be as specified on figure 1.
The hose assembly identification shall be marked in accordance with MIL-DTL-8790. PIN example:
MS 28921 -8 016 4
Length in eighths of an inch (0 through 7) Length in inches (3 places)
Dash size number (see figure 1) Specification number
MS prefix
Example of a PIN: MS28921H0164, MS28921 hose assembly, .500 inch (1/2 inch) passageway diameter, 16.5 inches long.
Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue, due to the extent of the changes.
Referenced documents. In addition to MIL-DTL-8790, this document references the following: MS28760
MS28781
MIL-DTL-8788
2
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