Model: RH30C4D

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.420 inches

Counterbore Diameter

0.250 inches washer and 0.280 inches washer

Lubrication

Dry film lubricant

Overall Height

Between 0.204 inches and 0.219 inches

Nut Style

Hexagon

Washer Thickness

0.019 inches

Nut Counterbore Depth

0.007 inches washer and 0.036 inches washer

Width Across Flats

Between 0.304 inches and 0.316 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.250 inches

Material

Iron alloy 660

Material Specification

Ams 5525 assn standard single material response or ams 5732 assn standard single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, class 2 federal specification single treatment response

NSN

5310-01-304-7972

Part Number

RH30C4D

Description

Nut,self-locking,extended Washer

CAGE

52828

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part RH30C4D NSN 5310-01-304-7972

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29730

FIIG:

A021A0

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:

0.1000lbs

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:

573

TCC:

SHC:

ACC:

Construction Materials

End Items End applications NSN 5310-01-304-7972 is a component of

Close In Weapon System (ciws-phalanx)
Ticonderoga Class Cg (47)
Spruance Class Dd (963)
Forrestal Class Cv
Nimitz Class Cvn
Kidd Class Ddg
Arleigh Burke Class Ddg
Oliver Perry Class Ffg
Wasp Class Lhd
Lpd-17 Class Amphibious Transport Dock
013543289
Aircraft Component Hoisting Unit

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Schedule B and Export

Schedule B: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel