NSN 4240-01-152-1525, 4240011521525
SAFETY DYNA BRAKE LANYARD

Federal Supply Classification: FSC 4240 - Safety and Rescue Equipment
National Item Identification Number: NIIN 011521525
Codification Country: United States
Item Name Code: INC 77777
Criticality: (X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code: (P) There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product.

Availability: Readily Available Qualified Suppliers: We have 4 qualified suppliers

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DLMS^® Summary

National Stock Number 4240-01-152-1525

National Stock Number (NSN) 4240-01-152-1525, or NIIN 011521525, (safety dyna brake lanyard) was assigned April 28, 1983 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 4 manufacturer part numbers associated with this NSN. None of the associated part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, 2 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 2 suppliers are deemed design controlled or valid supply parts. ISO Group has several sources of supply for this NSN.

This part number has not been procured by the US Government in over a year. There have been 6 contracts issued for this part number, with 6 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 5 different suppliers. The last contract numbers awarded were: SPE8E921V2421, SPE8E621P0278, SPE8E621P0278, SPE8EH17V0266, SPE8EH15V0631. The total value of the awarded contracts has been US$ 27,744.54.

This NSN is fairly common among different weapons systems, belonging to 17 different platforms.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on May 02, 2006, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part is a commercial/non-developmental/off-the-shelf-item. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 77777. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no information in the HMIRS; however, the NSN is in an FSC in Table II of Federal Standard 313 and an MSDS may be required by the user. The requirement for an MSDS is dependent on a hazard determination of the supplier or the intended end use of the product. NSN 4240011521525 does not contain precious metals.

This information was last updated on Aug 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) ADJUSTABLE ONE INCH NYLON STRAP WITH TWO DOUBLE LOCK SNAP HOOKS AND SHOCK ABSORBERS; DYNA BRAKE IS 10 FEET LONG