Part Number 90820-991

Lock Washer

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Part Number

DEMIL

Shelf Life

UOM

NIIN

Part:

90820-991

Demil:

Shelf Life:

UOM:

NIIN:

013058584

NSN

National Stock Number:

5310-01-305-8584 5310013058584

TXT

Description:

Lock Washer

INC

Item Name Code:

14218

MRC:

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

Hole Diameter:

Between 12.9 millimeters and 13.1 millimeters

MRC:

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

Outside Diameter:

Between 19.4 millimeters and 19.6 millimeters

MRC:

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

Material Thickness:

Between 2.9 millimeters and 3.4 millimeters

Part Number	RNVC	RNAAC	DAC	CAGE
90820-991	1	ZZ	E	076M6
90820-991	2	ZZ	5	076M6
90820-991	9	ZZ	E	0BAT5
21542028-178	9	KZ	E	S3465
2154 2028-178	2	ZZ	5	076M6

Code	Definition
FN	Factory New. Parts manufactured by then OEM and includes manufacturer certification.
NE	New. Parts manufactured by the OEM. May include manufacturer certification or company certification.
NS	New Surplus. New material item purchased from excess inventory.
OH	Overhauled. Product has been rebuilt and tested in accordance with the manufacturer's specifications by a repair shop (MRO).
SV	Serviceable product.
AR	As Removed. Product removed from aircraft or platform with no guarentee on the functionality of the part.
RP	Repairable. Product can be repaired by a MRO and be given a FAA 8130 or EASA Form 1 certification.