SD-15 Guide For Performance SpecificationsThis document provides guidance information on performance specifications focusing primarily on stating requirements in performance terms and ensuring that sufficient verification means are included in the specification to evaluate conformance. While the focus of this document is on defense specifications developed under DoD 4120.24-M, Defense Standardization Program DSP Policies and Procedures, the principles and techniques can also be applied to program unique performance specifications, performance-based purchase descriptions, commercial item descriptions, or any other type of procurement specification. This guide is intended to supplement the format and content requirements for writing performance specifications found in MIL-STD-961, Defense and Program-Unique Specifications Format and Content.

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Performance Specification Guide SD-15

3.5.4   Non-interference.  The Tactical Sling shall not interfere with the use or function of the weapon to include but not limited to blocking the ejection port, interfering with the cartridges feeding, weapon charging and collapsing or extending the buttstock.

3.5.5   Compatibility.  The Tactical Sling shall be operable and maintainable by the 5th percentile female through 95th  percentile male soldiers, as specified in MIL-STD-1472, while dressed in environmentally protective clothing (MOPP IV and arctic gear without mittens).

3.5.6   Tactical sling attachment.  The Tactical Sling shall attach to the M16, M16A2, M16A4

Modular Weapon System (MWS), M4, and M4 MWS without the use of tools (T).  The Tactical Sling shall be capable of attaching to the previously identified weapons when they are configured with the M203 Grenade Launcher (GL) without the use of any tools (O).

3.5.7   Silent.  The Tactical Sling shall not be heard at a distance of 10m(T), 5m(O) when it is opened and will remain quiet in operation when both closed and extended.

3.6   Environmental requirements.

3.6.1   Operational temperature.  The Tactical Sling shall function throughout a temperature range from not less than -55 degrees Fahrenheit to not greater than +155 degrees Fahrenheit.

3.6.2    Salt spray.  The Tactical Sling shall be safe to handle, be fully operable, and show no evidence of corrosion after a minimum of 48 hours of salt fog exposure.

3.6.3   Chemical compatibility testing. The Tactical Sling shall be compatible with Army standard chemicals listed below:

P-C-111                   Carbon Removing Compound

MIL-PRF-372          Cleaning Compound, Solvent (For Bore of Small Arms and

Automatic Aircraft Weapons)

MIL-L-14107           Lubricating Oil, Weapons, Low Temperature

MIL-G-21164          Grease, Molybdenum Disulfide, For Low and High Temperatures, NATO Code Number G-353

MIL-L-46000           Lubricant, Semi-Fluid (Automatic Weapons)

MIL-PRF-63460      Lubricant, Cleaner, and Preservative for Weapons and Weapons

Systems

3.7   Support and ownership requirements.

3.7.1   Attachment.  The Tactical Sling shall attach to the front swivel and buttstock attachment points (T).  The Tactical Sling shall have the option to attach to multiple points on the weapon (O).

3.7.2    Color.  The Tactical Sling shall be a dull non-reflective color.

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