Model: BFN228-5-4

Plate Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Counterbore Diameter
0.372 inches nut
Lubrication
Dry film lubricant
Mounting Hole Diameter
Between 0.130 inches and 0.135 inches
Nut Style
Plate (floating)
Nut Length
1.292 inches
Nut Height
0.524 inches
Plate Thickness
Between 0.036 inches and 0.044 inches
Plate Width
0.650 inches
Nut Counterbore Depth
0.250 inches nut
Nut Mounting Provision
Straight holes
Mounting Hole Arrangement Style
2 holes
Distance From Aperture Center To Mounting Hole Center
Between 0.495 inches and 0.505 inches
Center To Center Distance Between Mounting Holes Along Length
Between 0.998 inches and 1.002 inches
Thread Series
Unjf
Features Provided
Floating nut
Thready Qty Per Inch (tpi)
24
Thread Size
0.312 inches
Material
Iron alloy 660 nut
Material
Iron alloy 660 shell
Material
Steel comp 302 clip
Surface Treatment
Passivate clip
Surface Treatment
Passivate nut
Surface Treatment
Passivate shell
Surface Treatment Specification
Qq-p-35 federal specification single treatment response clip
Surface Treatment Specification
Qq-p-35 federal specification single treatment response nut
Surface Treatment Specification
Qq-p-35 federal specification single treatment response shell
NSN
5310-01-337-0368
Part Number
BFN228-5-4
Description
Nut,self-locking,plate
CAGE
27238

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part BFN228-5-4 NSN 5310-01-337-0368

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05280
FIIG:
A021A0
Concept No.:
1
App. Key:
BZ
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:

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

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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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