Model: 72-1228

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.250 inches
Fastener Length
1.250 inches
Head Style
Pan
Head Diameter
Between 0.473 inches and 0.492 inches
Head Height
Between 0.162 inches and 0.175 inches
Washer Quantity
1
Internal Drive Style
Cross recess type 1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Primary Washer Outside Diameter
Between 0.494 inches and 0.506 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
0.042 inches
Material
Steel
Surface Treatment
Nickel
Thread Series Designator
Unc
NSN
5305-00-914-6642
Part Number
72-1228
Description
Screw,assembled Washer
CAGE
47486

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

Part 72-1228 NSN 5305-00-914-6642

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

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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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