Model: 12Z56-1

Hexagon Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Free-running all metal design
Nut Height
0.250 inches
Width Across Flats
0.438 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
20
Thread Size
0.250 inches
Material
Copper alloy locking insert
Material
Steel comp 1211 or steel comp 1212 or steel comp 1213 nut
Material Specification
Mil-s-18411, cl 2 military specification all material responses nut
NSN
5310-00-188-7013
Part Number
12Z56-1
Description
Nut,self-locking,hexagon
CAGE
10001

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 12Z56-1 NSN 5310-00-188-7013

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093486
UFC:
48950
LTL:
RATING VARIABLE
LCL:
50.0
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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