Model: 5310007289957

Flat Washer

Properties:

Cross Sectional Shape
Rectangular
Hole Diameter
Between 0.396 inches and 0.416 inches
Edge Shape
Round
Center Hole Shape
1 round
Center Hole Shape
Round
Thickness
Between 0.011 inches and 0.025 inches
Overall Diameter
Between 0.865 inches and 0.885 inches
End Application
Mrap - cougar
Features Provided
Casehardened
Hardness Rating
Between 33.0 rockwell c and 38.0 rockwell c
Material
Steel comp 4130 or steel comp 4140 or steel comp 8640 or steel comp 8740
Material Specification
Qq-s-624 federal specification 1st material response or qq-s-626 federal specification 1st material response or qq-s-627 federal specification 1st material response and qq-s-624 federal specification 2nd material response or qq-s-626 federal specification 2nd material response or qq-s-627 federal specification 2nd material response and qq-s-624 federal specification 3rd material response or qq-s-626 federal specification 3rd material response or qq-s-627 federal specification 3rd material response and qq-s-624 federal specification 4th material response or qq-s-626 federal specification 4th material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, cl 1 federal specification single treatment response
NSN
5310-00-728-9957
Part Number
5310007289957
Description
Washer,flat
CAGE
SCY13

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes disk, valve, graphite impregnated and lubricated items.

Part 5310007289957 NSN 5310-00-728-9957

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
13393
FIIG:
A022B0
Concept No.:
1
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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