Recently Updated NSN 5305-00-144-0405 Or (5305001440405) 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)	00-144-0405 (001440405)
NCB Code	USA (00)
Manufacturer	Torkon Fastener Corp, National Aerospace Standards Com, Military Standards Corp, Federal Specifications

Part Number	Manufacturer	Item Name	RFQ
LK21262-77	torkon fastener corp	screw cap socket head	RFQ
MS21262-77	national aerospace standards com	screw cap socket head	RFQ
MS21262-77	military standards corp	screw cap socket head	RFQ
FFS86	federal specifications	screw cap socket head	RFQ

MRC	Criteria	Characteristic
AAJD	THREAD CLASS	3A
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	1.374 INCHES MINIMUM AND 1.531 INCHES MAXIMUM
AASB	FASTENER LENGTH	1.485 INCHES MINIMUM AND 1.531 INCHES MAXIMUM
AASK	HEAD STYLE	FLAT CHAMFER
AASL	HEAD DIAMETER	0.921 INCHES MINIMUM AND 0.937 INCHES MAXIMUM
AASU	HEAD HEIGHT	0.616 INCHES MINIMUM AND 0.625 INCHES MAXIMUM
AAUM	LOCKING FEATURE	PELLET THREADS OR STRIP THREADS
ABQZ	INTERNAL DRIVE STYLE	HEXAGON
AHYM	NOMINAL THREAD DIAMETER	0.625 INCHES
ASDB	WIDTH ACROSS FLATS	0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM
CMLP	THREAD QUANTITY PER INCH	18
CQBC	MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
CQFM	HARDNESS RATING	36.0 ROCKWELL C MINIMUM OVERALL AND 43.0 ROCKWELL C MAXIMUM OVERALL
CQHQ	MINIMUM YIELD STRENGTH	130000 POUNDS PER SQUARE INCH
MATT	MATERIAL	STEEL OVERALL
MDCL	MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
SFTT	SURFACE TREATMENT	CADMIUM OVERALL AND CHROMATE OVERALL
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THSD	THREAD SERIES DESIGNATOR	UNF
ZZZT	NONDEFINITIVE SPEC/STD DATA	6 TYPE
ZZZX	DEPARTURE FROM CITED DESIGNATOR	AS MOD BY LOCKING FEATURE