Model: RH30C4D

Extended Washer Self-locking Nut

Properties:

Thread Class
3b
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)
28
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.:
1
App. Key:
BT
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:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
TCC:
Z
SHC:
9
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

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