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|  MIL-R-8236F
3.3.1.3 Plating Steel parts in contact with aluminum or aluminum alloy shall be coated with a1uminum by
ion vapor deposition in accordance with MIL-C-83488, Type II. Class I (see 4.3.1.3).
3.3.1.4 Anodizing. All aluminum and aluminum alloy parts not subject to severe wear shall be anodizd
where applicable, in accordance with Type II of MIL-A-8625. All aluminum and aluminum alloy parts subject to
severe wear shall be anodized in accordance with Type II of MIL-A-8625. Severe wear is defined as wear which
results in inertia reel performance degradation below performance levels specified (see 4.3.1.4).
3.3.2 Screw threads. Screw threads shall conform to MIL-S-7742. All internal or external parts that are
threaded shall be positively locked (see 4.3.2).
3.4 Design and construction. The inertia reel shall withstand the strains, jars, vibrations, and other conditions
incident to shipping, storage, installation, and the operational service environment. Pivots, bearings, and gears
shall not bind, shake, or degrade inertia reel performance during normal operational use. Maintenance assembly
and disassembly for replacement of the webbing or cable and the control handle and cable assembly shall not
require special tools.
3.4.1 Standard Parts. AN or MS standard parts shall be used whenever they are suitable for the purpose and
shall be identified on the drawings by their part numbers (see 4.4.1). Government Qualifying Activity approval of
the use of non-standard parts shall be required prior to their use. Electrical parts, if used, shall be Military
Specification components.
3.4.2 Parts interchangeability. AH parts having the same manufacturer's part number shall be directly and
completely interchangeable with respect to installation and performance (see 4.4.2).
3.4.3 Subassemblies. The MA- 1 and MA-2 type inertia reel assemblies shall consist of. and be available as, 3
subassemblies:
a. Inertia reel housing with its internal mechanism(s), sensing device(s), and integrated shoulder harness
cable.
b. Manual control handle. with attaching hardware.
c. Manual control cable.
The MA-6, MA-8, MA-14, and MA-16 type inertia reel assemblies shall consist of, and be available as, 4
subassemblies:
a. Inertia reel housing with its internal mechanism(s), sensing device(s), and integrated cable or means for
accepting and accommodating a webbing lead-in strap or integrated restraint harness lead-in strap,
including webbing keeper
b. Webbing lead-in strap with harness attachment, when applicable.
c. Manual control handle, with attaching hardware.
d. Manual control cable.
Figure 4 depicts representative MA-6, MA-8, MA-14, and MA-16 type inertia reels.
3.4.3.1 Inertia reel housing subassembly. The inertia reel housing subassembly, which encloses the cable
drum or webbing spool, shall have provisions for calibration of the internal mechanism. Access for calibration
shall be gained using common hand tools in a maximum of 5 minutes (see 4.4.3.1).
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