Model: BR9520-4118

Round Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Lubrication
Wax
Small End Diameter
Between 3.015 inches and 3.047 inches
Drive Point Depth
Between 0.078 inches and 0.108 inches
Nut Style
Round
Nut Diameter
Between 3.110 inches and 3.130 inches
Nut Thickness
Between 0.366 inches and 0.396 inches
Drive Point Width
Between 0.234 inches and 0.266 inches
Undercut Thickness
0.075 inches
Drive Point Quantity
4
Tempurature Rating
Between 75.0 degrees fahrenheit and 100.0 degrees fahrenheit
Thread Series
Unjs
Thready Qty Per Inch (tpi)
18
Hardness Rating
Between 30.0 rockwell c and 36.0 rockwell c
Thread Size
2.540 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Plastic polyamide locking insertsteel comp 4130 nut
Material Specification
Zytel-103 cagec 81205 mfr ref single material response locking insertams 6370 assn standard single material response nut or ams 6731 assn standard single material response nut
Surface Treatment
Cadmium nut and chromate nut
Surface Treatment Specification
Qq-p-416 type 2, cl 3 federal specification single treatment response nut
NSN
5310-01-366-2817
Part Number
BR9520-4118
Description
Nut,self-locking,round
CAGE
019L2

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protusions, slots or splines in or on the periphery or in the face opposite the bearing surface. An integral feature is incorporated for locking on the threads of a mating member. Do not use if a more specific item name applies. Excludes collar, pin-rivet, threaded; insert, screw thread; nut (1), sleeve; nut(1), plain, cap; and turnbuckle body.

Part BR9520-4118 NSN 5310-01-366-2817

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15895
FIIG:
A021A0
Concept No.:
1
App. Key:
CA
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:
CRITL:
X

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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