ORDER BY PHONE (619) 331-9599      Contact Us      Request Quote
facebook
NationalStockNumber.org

Recessed Washer NSN 5310-00-988-7646

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 5310-00-988-7646 NSN: 5310-00-988-7646

Features and Characteristics

Hole Diameter
Between 0.200 inches and 0.205 inches
Outside Diameter
Between 0.558 inches and 0.560 inches
Recess Depth
Between 0.013 inches and 0.025 inches
Material Thickness
Between 0.110 inches and 0.130 inches
Hardness Rating
Between 26.0 rockwell c and 34.0 rockwell c
Top Recess Diameter
Between 0.230 inches and 0.250 inches
Bottom Recess Angle
90.0 degrees
Top Recess Angle
90.0 degrees
Bottom Recess Diameter
Between 0.230 inches and 0.250 inches
Surface Finish
63.0 microinches all surfaces
Special Features
0.020 to 0.030 by 45 degrees chamfered on each side of od
Material
Steel
Material Specification
Ams5637 assn standard single material response
Surface Treatment
Passivate
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
009887646
NSN
5310009887646

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2-060-192-02
Cage Code:
99193
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 5310-00-988-7646
What are the manufacturers of nsn 5310009887646?
Does this nsn 5310009887646 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310009887646
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 5310009887646 contain any precious metals?
Precious metal content is unknown.
Does nsn 5310009887646 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310009887646?
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

What do you get when you order from nationalstocknumber.org?

  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
ASA Aviation Suppliers Association Member Logo
NQA AS 9120 Suppliers Logo
ITAR Registered International Traffic in Arms Regulations Logo