Model: R440-1/2

Sealing Screw

Special Features:

Between this has an undercut-clear hole for an 0-ring to make this an air, water or gas-tight seal; the undercut is 0.125 inches and 0.129 inches ; o-ring is made of silicone rubber

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.500 inches
Fastener Length
0.500 inches
Head Style
Pan no. 2
Head Diameter
0.238 inches
Head Height
0.080 inches
Internal Drive Style
Cross recess type iii
End Application
2355-01-562-6152
Thread Diameter
0.112 inches
Features Provided
O ring
Thready Qty Per Inch (tpi)
40
Part Name Assigned By Controlling Agency
Sealing screw
Screw Material
Stainless steel
Bearing Surface Of Head Surface Treatment
Passivate
Head Surface Treatment
Passivate
Screw Surface Treatment
Passivate
Shank Surface Treatment
Passivate
Thread Series Designator
Unc
NSN
5305-01-602-3044
Part Number
R440-1/2
Description
Screw,sealing
CAGE
4XVX3

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
A
ESD:
A
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:
133300
UFC:
63220
LTL:
RATING VARIABLE
LCL:
--
WCC:
72E
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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