Model: 6641B

Machine Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.308 inches and 0.375 inches
Fastener Length
Between 0.344 inches and 0.375 inches
Head Style
Pan no. 2
Head Diameter
Between 0.155 inches and 0.167 inches
Head Height
Between 0.045 inches and 0.053 inches
Internal Drive Style
Torque
Thread Diameter
0.086 inches
Thready Qty Per Inch (tpi)
56
Screw Material
Plastic polyhexamethylene amide
Screw Material Specification
Mil-m-20693, composition a, type 1 military specification single material response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
1 type and 9s style
NSN
5305-00-922-3506
Part Number
6641B
Description
Screw,machine
CAGE
71002

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part 6641B NSN 5305-00-922-3506

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
Concept No.:
App. Key:
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
096640
UFC:
50600
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 3926909987
  • SITC: 89399
  • End Use: Other industrial supplies
  • NAICS: 326199
  • USDA: 1

Freight Class: Articles of plastics & articles of other materials of heading 3901 to 3914, nesoi

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