Model: 28311S7

Machine Screw

Properties:

Thread Class

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)

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:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

50.0

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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