Model: S249

Hexag Cone Seat Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Free-running all metal design
Nut Style
Cone seat, hexagon
Nut Height
Between 0.594 inches and 0.656 inches
Width Across Flats
Between 0.781 inches and 0.844 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
20
Thread Size
0.500 inches
Cone Seat Angle
Between 59.50 degrees and 60.50 degrees
Material
Steel
Surface Treatment
Cadmium or zinc
NSN
5310-00-354-5795
Part Number
S249
Description
Nut,self-locking,cone Seat,hexag
CAGE
25729

A nut having 6 flat sides and a cone seat bearing surface. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, single ball seat, hexagon.

Part S249 NSN 5310-00-354-5795

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
29727
FIIG:
A021A0
Concept No.:
1
App. Key:
BP
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:
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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