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Recessed Washer NSN 5310-01-350-6878

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 5310-01-350-6878 NSN: 5310-01-350-6878

Features and Characteristics

Hole Diameter
1.671 inches
Outside Diameter
2.472 inches
Recess Diameter
Between 1.748 inches and 1.750 inches
Recess Depth
0.288 inches
Material Thickness
Between 0.313 inches and 0.318 inches
Recess Angle
60.0 degrees
Material
Nickel alloy 400
Material Specification
Qq-n-281, cl a federal specification single material response
Style Designator
15 recessed
FSC
5310 Nuts And Washers
NIIN
013506878
NSN
5310013506878

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
801-6408788-25
Cage Code:
53711
Status:
A
MSDS:
Part Number:
211057710
Cage Code:
53711
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 5310-01-350-6878
What are the manufacturers of nsn 5310013506878?
Does this nsn 5310013506878 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310013506878
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 5310013506878 contain any precious metals?
No precious metal content.
Does nsn 5310013506878 contain any hazardous materials?
Hazardous material. MSDS available in HMIRS.
What is the ESD classification of nsn 5310013506878?
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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