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NSN 2520-00-172-1947, 2520001721947
Cancelled -> Replaced by 2520012149409

Federal Supply Classification
FSC 2520 - Vehicular Power Transmission Components
National Item Identification Number
NIIN 001721947
Codification Country
United States
Item Name Code
INC 52060
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.
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DLMS® Summary

National Stock Number 2520-00-172-1947

National Stock Number (NSN) 2520-00-172-1947, or NIIN 001721947, (disk,clutch,vehicular) was assigned August 23, 1972 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN replaces 1 stock number, 2520012149409.

There are 9 manufacturer part numbers associated with this NSN. 3 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 11 suppliers. Today, 9 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, 5 suppliers are deemed design controlled or valid supply parts. ISO Group has a strong supply network for this NSN, with 14 sources of supply.

This part number has not been procured by the US Government in over a year. There have been 273 contracts issued for this part number, with 162 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 4 different suppliers. The last contract numbers awarded were: SPE7L320F3894, SPE7L019V3282, SPE7L319V2470, SPE7L318PA317, SPE7L318PA317. The total value of the awarded contracts has been US$ 113,510.67.

This NSN is very common among different weapons systems, belonging to 44 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 Mar 23, 2018, 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) 52060. [A SOLID CIRCULAR DISK OF WIRE-WOVEN LINING MATERIAL OR CERAMIC AND METAL SUBSTANCE AND THE LIKE, MOLDED TO ONE OR BOTH SIDES AND FASTENED DIRECTLY OR INDIRECTLY TO THE CENTER SPLINE OR HUB, WHICH RECEIVES AND TRANSMITS MOTION OR POWER BY ENGAGEMENT WITH THE PRESSURE PLATE ASSEMBLY AND THE FLYWHEEL OR THE LIKE. INCLUDES DRY OR WET TYPE DISK, AND MAY INCLUDE DAMPER SPRINGS. THIS ITEM IS DESIGNED TO BE USED ON TANKS, AUTOMOBILES, CONSTRUCTION EQUIPMENT, AND THE LIKE IN CONJUNCTION WITH A CLUTCH ASSEMBLY, FRICTION.]. 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 2520001721947 contains an unknown precious metal.

This NSN is associated to Schedule B 8483909500: parts, nesoi, of bearing housings & plain shaft bearings, housed bearings, clutches, universal joints, flywheels and transmission shafts. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.

This information was last updated on .


Technical Characteristics

SMALLEST INSIDE DIAMETER
(BSPX) 4.562 INCHES NOMINAL
ANGLE BETWEEN LUGS IN DEG
(AJAS) 25.714 NOMINAL
DESIGN FORM
(ARJD) SOLID
LUG WIDTH
(AHMM) 0.469 INCHES NOMINAL
THICKNESS
(ABNM) 0.090 INCHES NOMINAL
DISK MATERIAL
(CYBJ) STEEL
DISK TYPE
(BPLM) EXTERNAL LUG
DESIGN TYPE
(APGF) WET
FLEXIBILITY
(FLEX) RIGID
SPLINE MAJOR DIAMETER
(AAUJ) 6.250 INCHES NOMINAL
LARGEST OUTSIDE DIAMETER
(AGWM) 6.250 INCHES NOMINAL

Manufacturer Part Numbers

055701230

RNCC
5
RNVC
2
29530330

RNCC
3
RNVC
2
423298C1

RNCC
5
RNVC
9
5740350

RNCC
5
RNVC
2
6836518

RNCC
5
RNVC
9
6836518

RNCC
C
RNVC
1
8625197

RNCC
5
RNVC
9
8625197

RNCC
C
RNVC
1
8625197

RNCC
5
RNVC
2
993545

RNCC
5
RNVC
2
993545C

RNCC
5
RNVC
2
2520PL0740945

RNCC
6
RNVC
9

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