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Recessed Washer NSN 5310-01-042-1801

Item Description

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

NSN 5310-01-042-1801 NSN: 5310-01-042-1801

Features and Characteristics

Hole Diameter
Between 0.757 inches and 0.770 inches
Outside Diameter
1.250 inches
Recess Diameter
Between 0.890 inches and 0.910 inches
Material Thickness
0.078 inches
Recess Angle
45.0 degrees
Surface Finish
125.0 microinches all surfaces
Special Features
One side chamfer 45 degree by 0.040 in lg
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
010421801
NSN
5310010421801

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A51B94007-11
Cage Code:
61174
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5310-01-042-1801
What are the manufacturers of nsn 5310010421801?
Does this nsn 5310010421801 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310010421801
A washer of any peripheral shape having a centrally located hole. both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. the thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. the maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. excludes washer, concave, retainer, packing, and thrust type washers. see also spacer, sleeve; and spacer, stepped.
Does nsn 5310010421801 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310010421801 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310010421801?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15933
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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