Model: KFN556-4

Extended Washer Self-locking Nut

Special Features:

Cetyl alcohol lubricant per mil-l-87132, type 1, grade a

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Washer Outside Diameter
0.461 inches
Overall Height
0.380 inches
Nut Style
Hexagon
Washer Thickness
Between 0.107 inches and 0.111 inches
Width Across Flats
Between 0.305 inches and 0.313 inches
Thread Series
Unjf
Thready Qty Per Inch (tpi)
28
Hardness Rating
Between 39.0 rockwell c and 43.0 rockwell c
Thread Size
0.250 inches
Material
Plastic polytetrafluoroethylene washer
Material
Steel comp 8740 nut or steel comp e4340 nut
Material Specification
Mil-p-19468 military specification single material response washer
Material Specification
Mil-s-6049 military specification 1st material response nut or mil-s-5000 military specification 2nd material response nut
Surface Treatment
Cadmium nut and chromate nut
Surface Treatment Specification
Qq-p-416, type 2, cl 2 federal specification single treatment response nut
NSN
5310-01-223-6530
Part Number
KFN556-4
Description
Nut,self-locking,extended Washer
CAGE
92215

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 KFN556-4 NSN 5310-01-223-6530

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:

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

Pricing & Availability Check

Submit this form for stock availability and pricing.
Part Number:
Quantity:
Email Address:
Phone Number:
Your Name:
Company:



Privacy Policy    Terms & Conditions

How to Order  

Ordering from buyaircraftparts.com

If you would like to order this extended washer self-locking nut (NSN 5310-01-223-6530) please submit the pricing and availability form above to receive an up to date quote by email. If you agree to the pricing and terms you can e-sign your order online!

We are pleased to have the opportunity to serve you.

Have a Question

Hours: 08:00-18:00 Eastern Standard Time
Phone: +1 470-231-0824
Email: Contact Form »
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

Highest Rated Parts
Recently Purchased Parts
Hot Parts