MIL-DTL-197L
3.10.14 Method 55B - bulk quantities only. In addition to the requirements of method 50
of MIL-STD-2073-1, bearings or bearing components shall be packaged using the container
each bearing with nylon 6 or other suitable clean material in accordance with MIL-PRF-131,
MIL-PRF-121, or MIL-PRF-22191. Prior to wrapping, the bearings shall be drained of all
excess preservative. Bearings shall be secured in place in a manner devised by the contractor.
Activated desiccant shall be used as required and shall be evenly distributed among the bearings.
Desiccant shall not come in direct contact with the bearing surfaces (see 3.10.14.1). The size of
the container shall be minimized, consistent with the quantity and weight of the bearings packed
therein. The quantity of bearings shall be such that the gross weight shall not exceed 70 lbs.
Additional over-packing is not required. All unit packs shall include a humidity indicator.
3.10.14.1 Desiccant (activated). The bagged activated desiccant shall conform to
MIL-D-3464. Type I shall be used unless type II or type III is specified or required because of
special characteristics of the item (see 6.2). The desiccant shall be located in the pack in a place
most accessible to voids in the item or pack interior. Desiccant bags shall be secured within the
unit pack by tying, taping, etc., or in specially designated desiccant baskets affixed to the
container interior. Desiccant shall be adequately secured so as to prevent its shifting or
movement and under no circumstances be permitted to come in direct contact with critical
surfaces of the enclosed item. When direct contact is absolutely unavoidable, the desiccant shall
be isolated from the item with MIL-PRF-121, type I or II barrier material. The desiccant shall
not be unnecessarily exposed to the ambient environment when removed from the vaporproof
desiccant storage container. Removal of the desiccant and its insertion into the unit pack shall be
the last action prior to performing the final seal of the bag or container.
3.10.14.2 Quantity of desiccant. The minimum quantity of desiccant to be used per unit
pack shall be computed in accordance with either formula I or II as specified in section 5 of
MIL-STD-2073-1.
3.10.14.3 Humidity indicators. Humidity indicators shall be as specified in section 5 of
MIL-STD-2073-1.
3.11 Containers for bearings. Container selection shall be determined by the size and
weight of the bearings, examples include fiberboard box, cleated plywood, nailed box, metal
drum, or wood crate. Containers for large bearings shall have sufficient strength to withstand the
forces exerted on the container during handling. Dunnage shall be used to prevent movement of
the bearing within the container.
3.11.1 Unit containers. Bearings and components larger than 1.625 inches or 40 mm OD
and unit-protected in accordance with methods 20B, 40B, and 41B shall be individually
packaged in a unit container. Any bearing with a unit weight greater than one pound, regardless
of preservation method, shall be packaged in a unit container. The quantity unit pack for large
bearings shall be one each due to their fragile nature (brinelling). Items packed in vials in
accordance with preservation methods 44B or 46B may have more than one item in a vial. Items
in kits shall indicate one each, regardless of the quantity of items contained in the kit. Bearings
1.625 inches OD and smaller shall not be packaged with more than 25 per unit container. The
specified QUP of the contract or purchase order shall govern. Unit containers shall conform to
22
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business