Model: 28311S7

Machine Screw

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
0.312 inches
Fastener Length
0.312 inches
Head Style
Oval countersunk
Head Diameter
Between 0.257 inches and 0.279 inches
Internal Drive Style
Slot
Thread Diameter
0.138 inches
Thready Qty Per Inch (tpi)
32
Countersink Angle
Between 80.0 degrees and 82.0 degrees
Screw Material Specification
Qq-s-630 federal specification 1st material response or qq-s-630 federal specification 2nd material response or qq-s-630 federal specification 3rd material response or qq-s-630 federal specification 4th material response or qq-s-630 federal specification 5th material response or qq-s-631 federal specification all material responses or qq-s-631 federal specification 6th material response or qq-s-631 federal specification 7th material response or qq-s-631 federal specification 8th material response or qq-s-631 federal specification 9th material response or qq-s-631 federal specification 10th material response or qq-s-631 federal specification 11th material response or qq-s-634 federal specification 12th material response or qq-s-634 federal specification 13th material response or qq-s-634 federal specification 14th material response or qq-s-634 federal specification 15th material response or qq-s-634 federal specification 16th material response or qq-s-634 federal specification 17th material response
Screw Surface Treatment
Cadmium or zinc
Thread Series Designator
Unc
NSN
5305-00-013-4159
Part Number
28311S7
Description
Screw,machine
CAGE
23040

Part 28311S7 NSN 5305-00-013-4159

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:
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:
Construction Materials

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