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Recessed Washer NSN 5310-01-185-8056

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 5310-01-185-8056 NSN: 5310-01-185-8056

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Features and Characteristics

Hole Diameter
Between 0.760 inches and 0.770 inches
Outside Diameter
Between 1.220 inches and 1.230 inches
Recess Diameter
0.901 inches
Material Thickness
0.196 inches
Min. Tensile Strength (psi)
180000 pounds per square inch
Recess Angle
Between 88.0 degrees and 92.0 degrees
Surface Finish
32.0 microinches top
Special Features
Spherical radius 0.900 in. Min 0.910 in. Max bottom of washer
Material
Nickel alloy 718
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
011858056
NSN
5310011858056

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
L4100053-007
Cage Code:
43999
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7508900000
  • NAICS: 332999
  • SITC: 69975
  • Description: Other articles of nickel, nesoi (excluding cloth, grill & netting of nickel wire)
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-185-8056
What are the manufacturers of nsn 5310011858056?
Does this nsn 5310011858056 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310011858056
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 5310011858056 contain any precious metals?
No precious metal content.
Does nsn 5310011858056 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310011858056?
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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