Model: 1-4-28

Hexagon Slotted Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Slotted, hexagon
Nut Height
Between 0.212 inches and 0.226 inches
Width Across Flats
Between 0.428 inches and 0.438 inches
Thread Series
Unf
Thready Qty Per Inch (tpi)
28
Thread Size
0.250 inches
Bearing Surface Type
Chamfered
Material
Steel
Specification Data
80204-18.2.2-65 professional/industrial association standard
NSN
5310-00-063-1276
Part Number
1-4-28
Description
Nut,plain,slotted,hexagon
CAGE

A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.

Part 1-4-28 NSN 5310-00-063-1276

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01859
FIIG:
A021A0
Concept No.:
1
App. Key:
AG
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

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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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