Model: 191678

Assembled Washer Screw

Special Features:

W/header point

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.761 inches and 0.844 inches
Fastener Length
Between 0.844 inches and 0.875 inches
Head Style
Hexagon
Head Height
Between 0.208 inches and 0.230 inches
Width Between Flats
Between 0.489 inches and 0.500 inches
Washer Quantity
1
Internal Drive Style
Slot
Thread Diameter
0.312 inches
Thready Qty Per Inch (tpi)
24
Hardness Rating
30.0 rockwell c bearing surface of head and 40.0 rockwell c bearing surface of head
Hardness Rating
40.0 rockwell c primary washer and 50.0 rockwell c primary washer
Primary Washer Outside Diameter
Between 0.567 inches and 0.590 inches
Primary Washer Style
Flat external teeth
Primary Washer Material Thickness
Between 0.028 inches and 0.034 inches
Material
Steel comp 1020 or steel comp 1050
Material Specification
Sae assn standard all material responses
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
Unf
NSN
5305-00-019-1678
Part Number
191678
Description
Screw,assembled Washer
CAGE

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

Part 191678 NSN 5305-00-019-1678

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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