Model: 5118-3-51

Hexagon Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Hexagon
Nut Height
Between 0.320 inches and 0.337 inches
Width Across Flats
Between 0.551 inches and 0.562 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
16
Hardness Rating
Between 70.0 rockwell b and 100.0 rockwell b
Thread Size
0.375 inches
Bearing Surface Type
Flat
Material
Steel comp 1008 or steel comp 1095
Material Specification
Astm a307, grade 1 assn standard all material responses or ase j4429, grade 1 assn standard all material responses
Surface Treatment
Cadmium or zinc
Surface Treatment Specification
Qq-p-416, type 1, class 3 federal specification 1st treatment response or qq-z-325, type 1, class 3 federal specification 2nd treatment response
Specification Data
81348-ff-n-836 government specification and 96906-ms35690/canceled/ government standard
Nondefinitive Specification/std Data
2 type and 4 style and 3/8-16in. Size
NSN
5310-00-543-2628
Part Number
5118-3-51
Description
Nut,plain,hexagon
CAGE
79466

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 5118-3-51 NSN 5310-00-543-2628

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:
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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