Model: NAS720B10-7

Assembled Washer Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.344 inches and 0.438 inches
Fastener Length
Between 0.406 inches and 0.438 inches
Head Style
Pan no. 2
Head Diameter
Between 0.357 inches and 0.373 inches
Head Height
Between 0.099 inches and 0.110 inches
Washer Quantity
2
Internal Drive Style
Slot
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
55000 pounds per square inch
Secondary Washer Relationship To Primary Washer
Not identical
Secondary Washer Style
Flat
Primary Washer Outside Diameter
0.334 inches
Secondary Washer Outside Diameter
Between 0.338 inches and 0.348 inches
Primary Washer Style
Split helical ring
Primary Washer Material Thickness
0.047 inches
Secondary Washer Material Thickness
Between 0.029 inches and 0.035 inches
Material
Copper alloy fastener
Material
Copper alloy 260 primary washer or copper alloy 268 primary washer
Material
Copper alloy 510 secondary washer
Material Specification
Qq-b-613 federal specification all material responses primary washer
Material Specification
Qq-b-613 federal specification single material response fastener or qq-b-626 federal specification single material response fastener
Material Specification
Qq-b-750 federal specification single material response secondary washer
Surface Treatment
Tin
Thread Series Designator
Unf
Specification Data
80205-nas 720 professional/industrial association standard
NSN
5305-01-038-0340
Part Number
NAS720B10-7
Description
Screw,assembled Washer
CAGE
80205

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

Part NAS720B10-7 NSN 5305-01-038-0340

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:
096630
UFC:
50590
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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