Lock Washer

121574

(NSN) National Stock Number

5310-00-012-1574

Federal Supply Classification

5310 Nuts and Washers

Item Name Code

14218

Schedule B Code

7318210000

Summary

0.636 inches minimum and 0.653 inches maximum hole diameter, 1.079 inches maximum outside diameter, 0.156 inches minimum material thickness, 45.0 rockwell c minimum and 53.0 rockwell c maximum hardness rating, steel overall material, fed std 66,aisi c1060 thru c1080 fed std all material responses overall material document and classification

DAC	HCC	DMIL	RNCC
X	-	-	5

RNVC	SADC	MSDS	RNAAC
1	-	-	XX

Identification

A washer, usually round, with a centrally-located hole. Its edges and two bearing surfaces are designed in such a way that applied pressure brings into play the spring tension and/or frictional locking principle that materially resists any tendency toward turning. It may be made of one or two pieces.

INC	FIIG	Concept	Condition
14218	A022B0	1	1

Specifications

Hole Diameter

0.636 inches minimum and 0.653 inches maximum

Details

The length of a straight line which passes through the center of a hole,and terminates at the circumference.

Outside Diameter

1.079 inches maximum

Details

The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.

Material Thickness

0.156 inches minimum

Details

A measurement of the smallest dimension of the material,in distinction from length or width.

Hardness Rating

45.0 rockwell c minimum and 53.0 rockwell c maximum

Details

A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.

Material

steel overall

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material Document And Classification

fed std 66,aisi c1060 thru c1080 fed std all material responses overall

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Surface Treatment

cadmium overall

Details

The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.

Surface Treatment Document And Classification

qq-p-416,ty 2,cl 3 fed spec single treatment response overall

Details

The specification,standard,or manufacturers reference,and the classification designation,such as type,class,grade,and the like,that identifies the surface treatment material.

Style Designator

split helical-right hand

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

Master-Cross Reference List

Part	CAGE	DAC	HCC	RNCC	RNVC	MSDS	RNAAC
121574	18876	X	-	5	1	-	XX
12Z22PC256	10001	X	-	5	9	-	XX
146370PC10	10001	X	-	5	9	-	XX
179172PC7	10001	X	-	5	9	-	XX
328295PC23	10001	X	-	5	9	-	XX
328297PC11	10001	X	-	5	9	-	XX
328299PC9	10001	X	-	5	9	-	XX
378078PC3	10001	X	-	5	9	-	XX
424314PC17	10001	X	-	5	9	-	XX
681944PC13	10001	X	-	5	9	-	XX
121574	92679	5	-	5	9	-	KZ
121574	29930	5	-	5	9	-	KZ
L6493-10	46717	4	-	5	9	-	KZ
121574	31007	X	-	5	9	-	XX
FFW84CLASSASTYLE2	81348	X	-	4	1	-	XX
121574	24617	X	-	5	1	-	XX
131574	24617	X	-	5	1	-	XX
121574	11743	X	-	5	9	-	XX
121574	72582	X	-	5	1	-	XX
X14253	14351	X	-	5	9	-	XX
34811S7	23040	X	-	5	9	-	XX
G210722-4	64959	X	-	5	9	-	XX
G210722-4	70408	X	-	5	9	-	XX
L10DW13	59875	X	-	5	1	-	XX
D9578-1-27	91340	X	-	5	1	-	XX
121574	56442	5	-	5	9	-	KZ
MS35338-31	96906	X	-	2	2	-	XX