Model: 20520-H-SS-4.00-12

Shouldered Stud

Properties:

Thread Class

2a nut thread

Thread Class

2a stud thread

Thread Direction

Right-hand nut thread

Thread Direction

Right-hand stud thread

Thread Length

0.292 inches stud thread and 0.332 inches stud thread

Thread Length

0.480 inches nut thread and 0.520 inches nut thread

Shoulder Length

3.188 inches

Overall Length

Between 3.970 inches and 4.030 inches

Distance Across Flats

0.312 inches

Thready Qty Per Inch (tpi)

32 nut thread

Thready Qty Per Inch (tpi)

32 stud thread

Thread Size

0.190 inches nut thread

Thread Size

0.190 inches stud thread

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 303

Material Specification

Astm a582 assn standard single material response

Surface Treatment

Passivate

Surface Treatment Specification

Astm a380 assn standard single treatment response

Style Designator

Shouldered

Thread Series Designator

Unf nut thread

Thread Series Designator

Unf stud thread

NSN

5307-01-321-3657

Part Number

20520-H-SS-4.00-12

Description

Stud,shouldered

CAGE

51506

Part 20520-H-SS-4.00-12 NSN 5307-01-321-3657

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15946

FIIG:

A051A0

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:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

575

TCC:

SHC:

ACC:

Construction Materials

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