National Stock Number (NSN) 5305-01-219-9601 (5305012199601) Parts List

Item Name	Screw Cap Socket Head
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5305 Screws
National Item Identification Number (NIIN)	01-219-9601 (012199601)
NCB Code	USA (01)
Manufacturer	Allmetal Screw Products Corp, Federal Specifications

Part Number	Manufacturer	Item Name	Cage Code	RFQ
0.138-32-3AX0.312 HEXSOCKET CRES	allmetal screw products corp	screw cap socket head	70318	RFQ
6-32-3A X 5-16 HEX SOCKETHD CRES	allmetal screw products corp	screw cap socket head	70318	RFQ
6-32UNC-3AX0.312CRES	allmetal screw products corp	screw cap socket head	70318	RFQ
FF-S-86	federal specifications	screw cap socket head	81348	RFQ

MRC	Criteria	Characteristic
AAJD	THREAD CLASS	3A
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	0.312 INCHES NOMINAL
AASB	FASTENER LENGTH	0.312 INCHES NOMINAL
AASK	HEAD STYLE	KNURLED NO. 1
AASL	HEAD DIAMETER	0.218 INCHES MINIMUM AND 0.226 INCHES MAXIMUM
AASU	HEAD HEIGHT	0.134 INCHES MINIMUM AND 0.138 INCHES MAXIMUM
ABQZ	INTERNAL DRIVE STYLE	HEXAGON
AHYM	NOMINAL THREAD DIAMETER	0.138 INCHES
ASDB	WIDTH ACROSS FLATS	0.109 INCHES MINIMUM AND 0.111 INCHES MAXIMUM
CMLP	THREAD QUANTITY PER INCH	32
CQBC	MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
CQFM	HARDNESS RATING	39.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
MATT	MATERIAL	STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 305 OR STEEL COMP 316 OR STEEL COMP 384 OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
SFTT	SURFACE TREATMENT	PASSIVATE OVERALL
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SUPP	SUPPLEMENTARY FEATURES	FSCM 80204-ANSI B18.3 TABLE 3 SIZE 6
THSD	THREAD SERIES DESIGNATOR	UNC
ZZZK	SPECIFICATION/STANDARD DATA	81348-FF-S-86 GOVERNMENT SPECIFICATION
ZZZT	NONDEFINITIVE SPEC/STD DATA	6 TYPE AND 6-32 SIZE AND 5/16IN. LENGTH AND 3A CLASS AND UNC SERIES