SCREW MACHINE
P/N FFS92TYPE1STYLE2S
NSN 5305-00-811-6954
MFG FEDERAL SPECIFICATIONS
 
NEW GOV SURPLUS
SUPPLIER CAGE CODE 03EF7
 
ITEM NAME:   SCREW,MACHINE
DEFINITION:  An externally threaded fastener whose threaded portion is of one
             nominal diameter, No 0 (0.060 in./1.5 mm) or larger, designed to be
             held or driven with either a wrench or an inserted driver or both
             (excluding internal socket or internal multiple spline types), in
             sizes below No. 10 (0.190 in./5 mm). No. 10 and larger sizes must have
             a head designed for any type inserted driver (excluding internal
             socket or internal multiple spline types), but may also be designed
             for external wrenching. A locking feature may be incorporated in the
             design of the head or threads. Excludes BOLT, CLEVIS; BOLT, EXTERNALLY
             RELIEVED BODY; SCREW, EXTERNALLY RELIEVED BODY; and SCREW, ASSEMBLED
             WASHER. See also, SCREW, INSTRUMENT; BOLT, MACHINE; BOLT, INTERNAL
             WRENCHING; and SCREW, CAP SOCKET HEAD.
            
 
CHARACTERISTIC                          VALUE
THREAD CLASS                            3A                                               
THREAD DIRECTION                        RIGHT-HAND                                       
THREAD LENGTH                           1.125 INCHES MINIMUM AND 1.250 INCHES MAXIMUM    
FASTENER LENGTH                         1.250 INCHES NOMINAL                              
HEAD STYLE                              FLAT COUNTERSUNK                                 
HEAD DIAMETER                           0.685 INCHES MINIMUM AND 0.762 INCHES MAXIMUM    
INTERNAL DRIVE STYLE                    CROSS RECESS TYPE 1                               
NOMINAL THREAD DIAMETER                 0.375 INCHES                                     
THREAD QUANTITY PER INCH                16                                               
COUNTERSINK ANGLE                       80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM    
SCREW MATERIAL                          NICKEL ALLOY                                     
NON-DEFINITIVE GOVERNMENT               FFS92TYPE1STYLE2S                                
SPEC/STD REFERENCE                                                                        
SPEC/STD CONTROLLING DATA               81348                                            
MANUFACTURERS CODE                                                                       
THREAD SERIES DESIGNATOR                UNC                                              
NONDEFINITIVE SPEC/STD DATA             1 TYPE AND 2S STYLE                              
DEPARTURE FROM CITED                    AS MODIFIED BY MATERIAL AND THREAD CLASS