NAS1705-21 of National Aerospace Standards Com under NSN 5305-00-850-6251

Part Number: NAS1705-21

Alternate P/N: NAS170521

Manufacturer: National Aerospace Standards Com

NSN: 5305-00-850-6251

NIIN: 008506251

Item Name : Screw Shoulder

CAGE Code: 80205

FSC: 5305 Screws

FSG: 53 Hardware and Abrasives

Country: USA

NCB Code: 00

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NSN Information for Part Number NAS1705-21 with NSN 5305-00-850-6251, 5305008506251

NSN	FSC	NIIN	CLS	Hazmat	DEMIL	Cancelled NSN
5305-00-850-6251 Item PartTypeName: SCREW,SHOULDER	5305	008506251	0	N
	CIIC	HCC	ESD	PMIC	Criticality	ENAC
	U			U
Part Number	ISC	RNVC	RNCC	HCC	MSDS	SADC
NAS1705-21	2	2	3

Characteristics Data of NSN 5305-00-850-6251, 5305008506251

MRC	Criteria	Characteristic
AAJF	THREAD DIRECTION	RIGHT-HAND
AASA	THREAD LENGTH	0.423 INCHES MINIMUM AND 0.573 INCHES MAXIMUM
AASB	FASTENER LENGTH	1.828 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
AASK	HEAD STYLE	FLAT COUNTERSUNK
AATX	SHOULDER LENGTH	1.180 INCHES MINIMUM FIRST SHOULDER AND 1.202 INCHES MAXIMUM FIRST SHOULDER
ABQZ	INTERNAL DRIVE STYLE	HIGH-TORQUE
CMLP	THREAD QUANTITY PER INCH	24
CQBC	MINIMUM TENSILE STRENGTH	160000 POUNDS PER SQUARE INCH
CQFM	HARDNESS RATING	36.0 ROCKWELL C MINIMUM OVERALL AND 40.0 ROCKWELL C MAXIMUM OVERALL
MATT	MATERIAL	STEEL COMP E4340 OVERALL OR STEEL COMP 4340 OVERALL OR STEEL COMP 8740 OVERALL OR STEEL COMP 8735 OVERALL OR STEEL COMP 6150 OVERALL OR STEEL COMP 4140 OVERALL OR STEEL COMP 4037 OVERALL OR STEEL COMP 4130 OVERALL
SFTT	SURFACE TREATMENT	CADMIUM OVERALL AND CHROMATE OVERALL
AAJD	THREAD CLASS	3A
AASL	HEAD DIAMETER	0.629 INCHES MINIMUM AND 0.633 INCHES MAXIMUM
AATN	SHOULDER DIAMETER	0.327 INCHES MINIMUM FIRST SHOULDER AND 0.328 INCHES MAXIMUM FIRST SHOULDER
AHYM	NOMINAL THREAD DIAMETER	0.312 INCHES
CRSQ	COUNTERSINK ANGLE	100.0 DEGREES NOMINAL
CWYB	SHOULDER SHAPE	ROUND FIRST SHOULDER
STDC	SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THSD	THREAD SERIES DESIGNATOR	UNF