Model: 228311

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.512 inches and 0.611 inches
Fastener Length
0.625 inches
Head Style
Round
Head Diameter
Between 0.240 inches and 0.260 inches
Head Height
Between 0.091 inches and 0.103 inches
Washer Quantity
1
Internal Drive Style
Cross recess type 1
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Hardness Rating
40.0 rockwell c primary washer and 50.0 rockwell c primary washer
Primary Washer Outside Diameter
Between 0.270 inches and 0.280 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.014 inches and 0.020 inches
Material
Steel
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification 1st treatment response or qq-z-325, type 1, cl 3 federal specification 2nd treatment response
Thread Series Designator
Unc
NSN
5305-00-022-8311
Part Number
228311
Description
Screw,assembled Washer
CAGE
21450

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part 228311 NSN 5305-00-022-8311

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06660
FIIG:
A003B0
Concept No.:
App. Key:
SA
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:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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