Model: 18309

Machine Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.775 inches and 0.875 inches
Fastener Length
0.875 inches
Head Style
Flat countersunk
Head Diameter
Between 0.452 inches and 0.507 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.250 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
55000 pounds per square inch
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Screw Material Specification
66 federal standard all material responses
Screw Surface Treatment
Cadmium and chromate
Screw Surface Treatment Specification
Qq-p-416, type 2 cl 3 federal specification all treatment responses
Thread Series Designator
Unc
NSN
5305-00-954-3937
Part Number
18309
Description
Screw,machine
CAGE
73734

Part 18309 NSN 5305-00-954-3937

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:
1.2000lbs
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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