MIL-STD-209K
4.8 Spreader bars.
The use of spreader bars to meet the requirements of this standard is not allowed unless approved by SDDCTEA or the appropriate service transportability agent. Stowage location(s) shall be provided to ensure the spreader bars stay with the item and they shall be basic issue item (Bii) equipment. Designers should consider using cable guides or reinforcement of sling contact points on equipment as an alternative to requiring spreader bars. Cable guide openings for accepting slings shall meet the appropriate "Dmin" dimension in Figure 3. if required, spreader bars or cable guides shall be used during provision testing.
4.9 Deviations.
Request for modifications/special considerations from any requirements in this standard shall be identified and submitted to SDDCTEA or the appropriate service transportability agent. Requests shall be submitted as soon as the need is identified to support early resolution. if not previously approved, a request shall be included in the data package submitted to materiel developers for source selection and evaluation. Approval by SDDCTEA or the service transportability agent for a deviation from the requirements in this standard is required prior to contract award.
4.10 Strength of Provisions.
The load factors (LFs) in section 5 have been established to account for the dynamic loads encountered during highway, rail, marine, and USAF fixed wing air transport. Provisions meeting these strength requirements will be compatible with current transportation systems and techniques used for military deployments. LFs have been adopted for reasons of simplicity, convenience, economy in testing, and repeatability of test procedures and results. However, since statically applying the LFs cannot precisely reproduce the effects of many of the actual dynamic loads found in operations, factors such as characteristics of load application, load repetition, load reversal, and equipment life shall be considered in the design process. The LFs are a minimum requirement for meeting this standard and do not preclude the designer from making the provisions with a higher strength than required. The designer should make allowances for the physical and chemical properties of the material (for example, fatigue, corrosion and galvanic action because of dissimilar metals, and harsh environments) and for normal wear and tear during the expected life of the equipment.
4.11 Provision dimensions.
To ensure compatibility and interoperability between lifting and tiedown provisions on military equipment and the transportation systems used for deployments, provision openings must meet certain dimensional requirements. The provision openings must be within a range of dimensions to allow for commonly available hooks and tiedown devices to interface with the provisions. For the required dimensions, see Figure 3.
4.12 Supplemental air transport tiedown provisions.
Efficient use of airlift dictates that equipment be designed for tiedown in the least
Source: https://assist.dla.mil -- D7ownloaded: 2014-09-28T23:10Z Check the source to verify that this is the current version before use.
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business