Model: A3255701

Thumbscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.500 inches and 0.620 inches
Fastener Length
Between 1.560 inches and 1.680 inches
Head Style
Thumb no. 6
Head Height
Between 1.000 inches and 1.240 inches
Width Between Flats
Between 0.880 inches and 1.120 inches
Shoulder Diameter
0.235 inches first shoulder and 0.265 inches first shoulder
Shoulder Length
1.000 inches first shoulder and 1.120 inches first shoulder
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Shoulder Shape
Round first shoulder
Material
Steel
Material Specification
Aisi -1010 assn standard all material responses or aisi -1018 assn standard all material responses
Thread Series Designator
Unc
NSN
5305-01-437-1118
Part Number
A3255701
Description
Thumbscrew
CAGE
80063

An externally threaded fastener whose threaded portion is of one nominal diameter. It may have an unthreaded portion with a diameter less than, equal to, or greater than the diameter of the threaded portion. It has either a vertically flattened, circular knurled, or wing type head, all of which are designed for rotation by the thumb and fingers. For items having wrenching facilities such as socket recess, multiple spline or slot heads, use screw (as modified) or bolt (as modified).

Part A3255701 NSN 5305-01-437-1118

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06673
FIIG:
A003B0
Concept No.:
App. Key:
SR
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:
A
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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