NSN 4210-00-217-3452, 4210002173452
HUB,FIRE PUMP DRIVE CLUTCH

Federal Supply Classification: FSC 4210 - Fire Fighting Equipment
National Item Identification Number: NIIN 002173452
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: Currently qualifying suppliers

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DLMS^® Summary

National Stock Number 4210-00-217-3452

National Stock Number (NSN) 4210-00-217-3452, or NIIN 002173452, (hub,fire pump drive clutch) was assigned January 1, 1963 in the Federal Logistics Information System (FLIS). This NSN does not replace any other NSNs.

There are 6 manufacturer part numbers associated with this NSN. 4 of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 2 suppliers. Today, one supplier is listed as an Active supplier for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over 5 years.

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 4210002173452 contains an unknown precious metal.

This information was last updated on Jul 01, 2025.

Technical Characteristics

III END ITEM IDENTIFICATION: (AGAV) TRUCK,FIRE FIGHTING,POWERED PUMPER CLASS 530A
END ITEM IDENTIFICATION: (AGAV) TRUCK,FIRE FIGHTING,POWERED PUMPER CLASS 530A
GENERAL CHARACTERISTICS ITEM DESCRIPTION: (TEXT) STEEL,CYLINDRICAL SHAPE,2.678/2.679 IN.BODY OD,0.087 IN.W FLANGE EXTENDING OD TO 2.875 IN.,CENTER THRU BORE 1.3792/1.3797 IN.ID,BORE LG 1.516 IN.,1-0.250 IN.HOLE DRILLED FROM OUTSIDE DIA TO BORE,0.625 IN. FROM UNFLANGED END TO HOLE CENTER,THIS HOLE COUNTER BORED 0.391 IN.DIA 0.266 IN.DEEP,1 KEYWAY 0.188 IN.W,0.094 IN.DEEP,1.516 IN. LG,2 DRILLED HOLES 180 DEG APART ON 1.938 IN.BC 0.500 IN.DEEP,TAP 1/4-14 ON FLANGED END OF HUB,3 EQUAL SPACED SQUARED NOTCHES 0.500 IN.W,0.156 IN.DEEP,1.516 IN.LG ON OUTER SURFACE