Recently Updated NSN 5305-00-173-2993 Or (5305001732993) Part 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)	00-173-2993 (001732993)
NCB Code	USA (00)
Manufacturer	Federal Specifications, Electric Boat Corporation

Part Number	Manufacturer	Item Name	RFQ
FFS86	federal specifications	screw cap socket head	RFQ
2620-709X4PC148	electric boat corporation	screw cap socket head	RFQ

MRC	Criteria	Characteristic
AAJD	THREAD CLASS	3A
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	1.552 INCHES MINIMUM AND 1.781 INCHES MAXIMUM
AASB	FASTENER LENGTH	1.734 INCHES MINIMUM AND 1.781 INCHES MAXIMUM
AASK	HEAD STYLE	FLAT CHAMFER
AASL	HEAD DIAMETER	0.921 INCHES MINIMUM AND 0.938 INCHES MAXIMUM
AASU	HEAD HEIGHT	0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
ABQZ	INTERNAL DRIVE STYLE	HEXAGON
AHYM	NOMINAL THREAD DIAMETER	0.625 INCHES
ASDB	WIDTH ACROSS FLATS	0.500 INCHES NOMINAL
CMLP	THREAD QUANTITY PER INCH	11
CQBC	MINIMUM TENSILE STRENGTH	80000 POUNDS PER SQUARE INCH
CQHQ	MINIMUM YIELD STRENGTH	40000 POUNDS PER SQUARE INCH
MATT	MATERIAL	NICKEL ALLOY 400 OVERALL OR NICKEL ALLOY R-405 OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	QQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
SPCL	SPECIAL TEST FEATURES	SPECIAL QUALITY CONTROL TESTING
TEST	TEST DATA DOCUMENT	81349-MIL-P-23199 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS,BROCHURES,ETC.,THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS,INDUSTRY DIRECTORIES,AND SIMILAR TRADE PUBLICATIONS,REFLECTI
THSD	THREAD SERIES DESIGNATOR	UNC
ZZZT	NONDEFINITIVE SPEC/STD DATA	6 TYPE
ZZZY	REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS	MATERIAL MUST CONFORM TO SHIPS PARTS CONTROL CENTER SPECIAL QUALITY CONTROL PROVISIONS