Model: 0N080025-2

Externally Relieved Body Screw

Special Features:

Ms51958-65 screw has been modified in accordance with nationalsecurity agency drawing no. 0n080025-2

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.208 inches and 0.228 inches

Fastener Length

Between 0.740 inches and 0.760 inches

Head Style

Pan

Head Diameter

Between 0.357 inches and 0.373 inches

Head Height

Between 0.122 inches and 0.133 inches

First Diameter From Head

Between 0.120 inches and 0.140 inches

Distance From Largest Bearing Surface Of Head To End Of First Diameter

Between 0.522 inches and 0.542 inches

Internal Drive Style

Cross recess type 1

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Externally Relieved Body Diameter Quantity

Material

Stainless steel

Material Specification

Qq-s-763, 300 series federal specification single material response or federal standard 66, 300 series federal standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Test Data Document

96906-ms51958 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Thread Series Designator

Unf

NSN

5305-00-227-7353

Part Number

0N080025-2

Description

Screw,externally Relieved Body

CAGE

98230

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and multiple spline types) but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. See also bolt, externally relieved body and bolt, internal wrenching.

Part 0N080025-2 NSN 5305-00-227-7353

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01852

FIIG:

A003B0

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:

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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