NSN 1615-00-761-2532, 1615007612532
COUPLING SET

Federal Supply Classification: FSC 1615 - Helicopter Rotor Blades, Drive Mechanisms and Components
National Item Identification Number: NIIN 007612532
Codification Country: United States
Item Name Code: INC 77777
Criticality: (F) This item is a Flight Safety Critical Aircraft Part (FSCAP).
Hazardous Material Indicator Code: (N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.

Availability: Readily Available Qualified Suppliers: We have 6 qualified suppliers

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DLMS^® Summary

National Stock Number 1615-00-761-2532

National Stock Number (NSN) 1615-00-761-2532, or NIIN 007612532, (coupling set) was assigned January 1, 1960 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 6 suppliers. Today, 6 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 4 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 5 years.

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 01, 2020, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) This part requires engineering source approval by the design control activity in order to maintain the quality of the part. An alternate source must qualify in accordance with the design control activity's procedures, as approved by the cognizant Government engineering activity. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 77777. This item is a Flight Safety Critical Aircraft Part (FSCAP). There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1615007612532 contains an unknown precious metal.

This NSN is associated to Schedule B 8803100060: propellers and rotors and parts thereof, for use in military aircraft. The Schedule B End Use is listed as parts for military-type goods. NAICS classification category 336413: other aircraft parts and auxiliary equipment manufacturing.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL MIL-S-5626,CADMIUM-PLATED QQ-P-416 CLASS 2 TYPE 1,SHAPE,RING W/2MOUNTING TABS,DIM.,6.500 IN. NOM OD,5.750 IN. NOM ID,0.875 IN. NOM THK,TWO MOUNTING TABS 180.0 DEG APART 2.250 IN. W BY 0.875 IN. THK BY 1.370 IN. LG,ONE 60.0 DEG V NOTCH CUT IN. EACH TAB 1.370 IN. DEEP,ONE CENTER SLOT ON EACHTAB 0.344 IN. W BY 1.180 IN. DEEP,TOP AND BOTTOM OF EACH TAB NOTCHED BY 0.313 IN. RADIUS,COUPLING CUT IN HALF THRUV-NOTCH BY 0.125 IN. CUTTER,HALVES MARKED WITH SERIAL AND PART NO. AND PACKAGED AS MATCHED SET
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) 8STEEL MIL-S-5626,CADMIUM-PLATED QQ-P-416 CLASS 2 TYPE 1,SHAPE,RING W/2MOUNTING TABS,DIM.,6.500 IN. NOM OD,5.750 IN. NOM ID,0.875 IN. NOM THK,TWO MOUNTING TABS 180.0 DEG APART 2.250 IN. W BY 0.875 IN. THK BY 1.370 IN. LG,ONE 60.0 DEG V NOTCH CUT IN. EACH TAB 1.370 IN. DEEP,ONE CENTER SLOT ON EACHTAB 0.344 IN. W BY 1.180 IN. DEEP,TOP AND BOTTOM OF EACH TAB NOTCHED BY 0.313 IN. RADIUS,COUPLING CUT IN HALF THRUV-NOTCH BY 0.125 IN. CUTTER,HALVES MARKED WITH SERIAL AND PART NO. AND PACKAGED AS MATCHED SET