Model: 539911

Barrel Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Counterbore Diameter
0.500 inches nut
Nut Style
Non-floating self-locking barrel
Nut Diameter
Between 0.738 inches and 0.741 inches
Nut Length
1.063 inches
Barrel Height
0.475 inches
Nut Height
Between 0.563 inches and 0.593 inches
Nut Counterbore Depth
0.094 inches nut
Tempurature Rating
350.0 degrees fahrenheit
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Hardness Rating
Between 26.0 rockwell c and 32.0 rockwell c
Thread Size
0.438 inches
Material
Steel comp 4130 or steel comp 8630 or plastic polyamide
Material Specification
Sae assn standard 1st material response or sae federal specification 2nd material response
Surface Treatment
Cadmium except insert
Surface Treatment Specification
Qq-p-416, type 1, cl 3 federal specification single treatment response except insert
NSN
5310-00-174-7421
Part Number
539911
Description
Nut,self-locking,barrel
CAGE
28839

A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, round.

Part 539911 NSN 5310-00-174-7421

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15891
FIIG:
A021A0
Concept No.:
1
App. Key:
BH
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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
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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