Model: NAS720B8-8

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.500 inches
Head Style
Pan no. 2
Head Diameter
0.314 inches
Head Height
0.090 inches
Washer Quantity
2
Internal Drive Style
Slot
Thread Diameter
0.164 inches
Thready Qty Per Inch (tpi)
32
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
0.293 inches
Secondary Washer Outside Diameter
0.293 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.040 inches
Secondary Washer Material Thickness
0.016 inches
Material
Copper alloy 342 fastener
Material
Copper alloy 510 primary washer
Material
Copper secondary washer
Surface Treatment
Tin fastener
Surface Treatment
Tin secondary washer
Surface Treatment
Tin primary washer
Thread Series Designator
Unc
Specification Data
80205-nas720 professional/industrial association standard
NSN
5305-01-137-7758
Part Number
NAS720B8-8
Description
Screw,assembled Washer
CAGE
80205

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

Part NAS720B8-8 NSN 5305-01-137-7758

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: 7415338550
  • SITC: 69433
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Other copper screws (not for wood) bolts and nuts

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