Recently Updated NSN 5305-01-078-5981 Or (5305010785981) Part List

Item Name	Screw Close Tolerance
Federal Supply Group (FSG)	Hardware and Abrasives
Federal Supply Class (FSC)	5305 Screws
National Item Identification Number (NIIN)	01-078-5981 (010785981)
NCB Code	USA (01)
Manufacturer	Bell Helicopter Textron Inc

Part Number	Manufacturer	Item Name	RFQ
20-058-4S15D	bell helicopter textron inc	screw close tolerance	RFQ

MRC	Criteria	Characteristic
AAJD	THREAD CLASS	3A
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	0.291 INCHES MINIMUM AND 0.341 INCHES MAXIMUM
AASB	FASTENER LENGTH	1.239 INCHES MINIMUM AND 1.269 INCHES MAXIMUM
AASK	HEAD STYLE	FLAT COUNTERSUNK
AASL	HEAD DIAMETER	0.449 INCHES MINIMUM AND 0.507 INCHES MAXIMUM
AAUR	GRIP DIAMETER	0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM
AAWB	SHANK UNTHREADED HOLE DIAMETER	0.076 INCHES MINIMUM FIRST HOLE AND 0.086 INCHES MAXIMUM FIRST HOLE
ABQZ	INTERNAL DRIVE STYLE	CROSS RECESS TYPE 1
AHYM	NOMINAL THREAD DIAMETER	0.250 INCHES
ANEE	GRIP LENGTH	0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM
CMLP	THREAD QUANTITY PER INCH	28
CQBC	MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
CRSQ	COUNTERSINK ANGLE	99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM
CRZS	DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER	1.113 INCHES MINIMUM FIRST HOLE AND 1.163 INCHES MAXIMUM FIRST HOLE
CSYM	SURFACE FINISH	32.0 MICROINCHES GRIP
CSYM	SURFACE FINISH	32.0 MICROINCHES THREADS
MATT	MATERIAL	STEEL COMP E4340 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 6150 OVERALL
SFTT	SURFACE TREATMENT	CADMIUM OVERALL AND CHROMATE OVERALL
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416 TY 2 CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THSD	THREAD SERIES DESIGNATOR	UNJF