Model: P-521-M01-F07-440

Round Plain Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Nut Style
Round
Nut Diameter
0.250 inches
Nut Thickness
0.375 inches
Thread Series
Unc
Thready Qty Per Inch (tpi)
40
Thread Size
0.112 inches
Part Name Assigned By Controlling Agency
Navy special project
Material
Copper alloy 360
Material Specification
Qq-b-626, comp 22, 1/2 h federal specification single material response
Surface Treatment
Nickel
Surface Treatment Specification
Qq-n-290, type 7 federal specification single treatment response
NSN
5310-01-309-7734
Part Number
P-521-M01-F07-440
Description
Nut,plain,round
CAGE
04729

A nut, circular in shape, which may have wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery or in the face opposite the bearing surface. For items having a thickness (or height) exceeding two times the outside diameter, use post, electrical-mechanical equipment. See also nut (1), plain, knurled. (when height or thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part P-521-M01-F07-440 NSN 5310-01-309-7734

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15887
FIIG:
A021A0
Concept No.:
1
App. Key:
AY
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:
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: 7415290000
  • SITC: 69432
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Copper screws, nuts, bolts, rivets, and other fasteners not threaded

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