| 
                            
                                |  |  
                                |   |  
		                        | National Stock Number:
 5305-01-376-2923
 
 Federal Supply Class:
 5305
 
 National Item Identification Number:
 013762923
 
 Description:
 SCREW,CAP,SOCKET HEAD
 
 Detail:
 An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See BOLT, INTERNAL WRENCHING. Excludes SCREW, SHOULDER; and SCREW, MACHINE.
 |  
		                        | 
 Manufacturer Information:
 
 | AMS-5643-1/4-20X2L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | S1E10064 ITEM 22 | 99517 | VACCO INDUSTRIES |  | S1E10064 ITEM 22L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | V2C11114-16DE0C1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | V2C11114-16DE0C1L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG |  | V2C11114-16DE0 | 99517 | VACCO INDUSTRIES |  | V2C11114-16DE0L1 | 03950 | NAVAL INVENTORY CONTROL POINT MECHANICSBURG | 
 |  
					            | 
 Techincal Specification:
 
 | MATERIAL | STEEL COMP 630 OVERALL |  | PROPRIETARY CHARACTERISTICS | PACS |  | NOMINAL THREAD DIAMETER | 0.250 INCHES |  | REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS | QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION ANC CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |  | SPECIAL FEATURES | 2IN LONG |  | THREAD QUANTITY PER INCH | 20 |  | CRITICALITY CODE JUSTIFICATION | ZZZY |  | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | 
 |  |