Model: 12NB048

Internal Wrench Self-locking Nut

Properties:

Thread Class
3b
Thread Direction
Right-hand
Width Between Flats
Between 0.378 inches and 0.382 inches
Locking Feature
Prevailing torque with nonmetallic insert
Internal Drive Style
Double hexagon
Nut Style
Internal wrenching
Nut Diameter
0.531 inches
Nut Height
0.646 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Material
Plastic locking insert
Material
Steel except insert
Surface Treatment
Cadmium nut
NSN
5310-00-595-9766
Part Number
12NB048
Description
Nut,self-locking,internal Wrench
CAGE
56878

A cylindrical-shaped nut, the end opposite the bearing surface being designed with an internal socket or splines for use with an inserted wrench. An integral feature is incorporated for locking on the threads of a mating member.

Part 12NB048 NSN 5310-00-595-9766

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05284
FIIG:
A021A0
Concept No.:
1
App. Key:
BX
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:
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

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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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