Model: 12Z56-401

Hexagon Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Free-running all metal design
Nut Style
Hexagon
Nut Height
0.252 inches
Width Across Flats
0.437 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
20
Thread Size
0.250 inches
Bearing Surface Type
Chamfered
Material
Copper alloy locking insert
Material
Steel comp 410 nut or steel comp 416 nut
Material Specification
Qq-s-763 federal specification 1st material response nut or astm a582 assn standard 2nd material response nut
NSN
5310-00-194-8691
Part Number
12Z56-401
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 12Z56-401 NSN 5310-00-194-8691

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:
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:
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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