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Recessed Washer NSN 5310-01-042-8874

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 5310-01-042-8874 NSN: 5310-01-042-8874

Features and Characteristics

Hole Diameter
Between 0.250 inches and 0.261 inches
Outside Diameter
Between 0.475 inches and 0.495 inches
Recess Diameter
Between 0.332 inches and 0.352 inches
Material Thickness
Between 0.057 inches and 0.069 inches
Hardness Rating
Between 36.0 rockwell c and 40.0 rockwell c
Recess Angle
Between 90.0 degrees and 100.0 degrees
Material
Steel comp 4130 or steel comp 8630 or steel comp 4135
Material Specification
Mil-s-18729 military specification 1st material response or mil-s-18728 military specification 2nd material response or mil-s-18733 military specification 3rd material response
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams 2416 assn standard single treatment response
Style Designator
15 recessed
Specification Data
81205-bacw10bp manufacturers standard
FSC
5310 Nuts And Washers
NIIN
010428874
NSN
5310010428874

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
BACW10BP4C
Cage Code:
81205
Status:
A
MSDS:
Part Number:
NTA11551-4C
Cage Code:
A0170
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-042-8874
What are the manufacturers of nsn 5310010428874?
Does this nsn 5310010428874 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310010428874
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 5310010428874 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310010428874 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310010428874?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
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