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Recessed Washer NSN 5310-00-149-9749

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 5310-00-149-9749 NSN: 5310-00-149-9749

Features and Characteristics

Hole Diameter
0.700 inches
Outside Diameter
1.250 inches
Material Thickness
Between 0.187 inches and 0.188 inches
Min. Tensile Strength (psi)
150000 pounds per square inch
Hardness Rating
Between 34.0 rockwell c and 38.0 rockwell c
Top Recess Diameter
0.820 inches
Bottom Recess Angle
45.0 degrees
Top Recess Angle
45.0 degrees
Bottom Recess Diameter
0.820 inches
Heat Treatment
Normalized
Material
Steel comp 4130
Material Specification
Mil-s-6758 military specification single material response
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response
Style Designator
Recessed both sides
FSC
5310 Nuts And Washers
NIIN
001499749
NSN
5310001499749

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
65700-70025-156
Cage Code:
78286
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 5310-00-149-9749
What are the manufacturers of nsn 5310001499749?
Does this nsn 5310001499749 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310001499749
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 5310001499749 contain any precious metals?
No precious metal content.
Does nsn 5310001499749 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310001499749?
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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