Model: PK373

Hexagon Self-locking Nut

Properties:

Thread Class
2b
Thread Direction
Right-hand
Locking Feature
Prevailing torque with nonmetallic insert
Lubrication
Dry film lubricant
Nut Style
Hexagon
Nut Height
Between 0.329 inches and 0.359 inches
Width Across Flats
Between 0.489 inches and 0.502 inches
Tempurature Rating
250.0 degrees fahrenheit
Thread Series
Unc
Thready Qty Per Inch (tpi)
18
Thread Size
0.312 inches
Bearing Surface Type
Chamfered or washer faced
Material
Plastic polyamide locking insert
Material
Steel nut
Material Specification
Sae j995 gr 5 assn standard single material response nut
Surface Treatment
Cadmium except insert and chromate except insert
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response except insert
NSN
5310-00-984-3806
Part Number
PK373
Description
Nut,self-locking,hexagon
CAGE
00198

A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.

Part PK373 NSN 5310-00-984-3806

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05277
FIIG:
A021A0
Concept No.:
1
App. Key:
BK
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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.6000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

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: 7318160000
  • SITC: 69421
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Nuts of iron or steel

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