Model: 421-4-25263-003

Hexagon Plain Nut

Properties:

Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 1.75 millimeters and 2.00 millimeters
Width Across Flats
Between 4.88 millimeters and 5.00 millimeters
Thread Series
M
Thread Size
2.5 millimeters
Thread Pitch In Millimeters
0.45
Bearing Surface Type
Chamfered
Thread Tolerance Class
6h internal
Part Name Assigned By Controlling Agency
Navy special project
Material
Steel comp 302
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
NSN
5310-01-362-4462
Part Number
421-4-25263-003
Description
Nut,plain,hexagon
CAGE
99207

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 421-4-25263-003 NSN 5310-01-362-4462

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01857
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:
A
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
093470
UFC:
48940
LTL:
70.0
LCL:
--
WCC:
713
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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