Model: 31UTC51618

Hexagon Self-locking Nut

Properties:

Thread Class
2b
Thread Pitch Diameters
+0.2764/+0.2817 inches
Thread Direction
Right-hand
Locking Feature
Prevailing torque all metal design
Nut Style
Hexagon
Nut Height
Between 0.258 inches and 0.359 inches
Width Across Flats
Between 0.489 inches and 0.502 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
18
Thread Size
0.313 inches
Bearing Surface Type
Chamfered
Material
Steel
Surface Treatment
Zinc and chromate
Surface Treatment Specification
Astm-b633, type iii, classfe/zn5 assn standard all treatment responses
NSN
5310-01-473-7114
Part Number
31UTC51618
Description
Nut,self-locking,hexagon
CAGE
5V824

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part 31UTC51618 NSN 5310-01-473-7114

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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

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:
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

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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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