Model: 6840420

Shoulder Screw

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.120 inches and 0.130 inches
Fastener Length
Between 0.469 inches and 0.500 inches
Head Style
Fillister
Head Diameter
Between 0.389 inches and 0.414 inches
Head Height
Between 0.161 inches and 0.170 inches
Shoulder Diameter
0.275 inches first shoulder and 0.280 inches first shoulder
Shoulder Length
0.339 inches first shoulder and 0.380 inches first shoulder
Hole Diameter
0.063 inches
Internal Drive Style
Slot
Thread Diameter
0.190 inches
Hole Quantity
1
Hole Type
Drilled
Thready Qty Per Inch (tpi)
32
Hardness Rating
26.0 rockwell c and 32.0 rockwell c
Hole Configuration Style
Round
Shoulder Shape
Round first shoulder
Material
Stainless steel
Material Specification
Ems85000, fscm 73342 mfr ref single material response
Thread Series Designator
Unf
NSN
5305-00-943-2636
Part Number
6840420
Description
Screw,shoulder
CAGE

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes bolt, internal wrenching and screw, cap, socket head.

Part 6840420 NSN 5305-00-943-2636

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
22846
FIIG:
A003B0
Concept No.:
App. Key:
SL
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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Equipment for Aircraft

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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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