Model: 18551

Rectangular Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Plain, rectangular
Nut Length
0.188 inches
Nut Height
0.050 inches
Nut Width
0.156 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
56
Thread Size
0.086 inches
Material
Steel comp 301 or steel comp 302 or steel comp 304 or steel comp 316
Material Specification
Mil-s-5059 military specification all material responses
Surface Treatment
Passivate
NSN
5310-00-687-7578
Part Number
18551
Description
Nut,plain,rectangular
CAGE
09384

A nut, flat on top and bottom, having four flat sides of which two parallel sides are shorter than the other two. For items having a thickness (or height) exceeding two times the width, use post, electrical-mechanical equipment. (when height or thickness and/or width is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 18551 NSN 5310-00-687-7578

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15890
FIIG:
A021A0
Concept No.:
1
App. Key:
AX
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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