NSN 1615-00-859-6111, 1615008596111
SLIDER,TAIL ROTOR

Federal Supply Classification: FSC 1615 - Helicopter Rotor Blades, Drive Mechanisms and Components
National Item Identification Number: NIIN 008596111
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: (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 12 qualified suppliers

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DLMS^® Summary

National Stock Number 1615-00-859-6111

National Stock Number (NSN) 1615-00-859-6111, or NIIN 008596111, (slider,tail rotor) was assigned January 1, 1962 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. 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 a strong supply network for this NSN, with 12 sources of supply.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Jan 31, 2017. There have been 2 contracts issued for this part number, with 2 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 2 different suppliers. The last contract numbers awarded were: SPRPA116G001W, SPE4A516M0105, SPE4A516M0105. The total value of the awarded contracts has been US$ 161,836.80.

This NSN is unique to one weapons system.

There has been a small amount of demand for this national stock number. Globally, demand for this NSN has originated from 6 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Feb 04, 2020, this NSN's acquisition method was noted as: Acquire directly from the actual manufacturer, whether or not the prime contractor is the actual manufacturer. 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 does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 1615008596111 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL MIL-S-5626 COMP 4140 COND D4 OR MIL-S-5000 COMP 4340 COND C1,CADMIUM-PLATED BPS FW4006 CLASS 2 TYPE 2 BODY,PHOSPHATE COATED BPS FW4384 TYPE 1SPLINE AND LUBRICATED PER MIL-G-25537,DIM.,2.188 IN. NOM LG,2.750 IN. NOM FLANGE LG,1.760 IN. NOM FLANGE CENTER W,0.160 IN. NOM FLANGE THK,1.312 IN. BODY OD,ID SPLINE DATA,INVOLUTE FLAT ROOTSPLINE SIDE BEARING SLIDING CLASS A FIT,34 TEETH ONE TOOTH OMITTED FOR INDEXING AT 180.0 DEG,30.0 DEG PRESSURE ANGLE,32/64 DIAMETRAL PITCH,1.0625 IN. PITCH DIA,1.0310 IN. MIN,1.0328 IN. MAX MINOR DIA,1.1040 IN. MIN,1.1121 IN. MAX MAJOR DIA,TWO MOUNTING HOLES ON FLANGE 0.259 IN. DIA 2.126 IN. C TO C DISTANCE,ONE OD GROOVE 0.060 IN. W,1.250 IN. DIA LOCATED 0.030 IN. FROM RIGHT END