Model: 820-4551186-1

Setscrew

Properties:

Thread Class
2a
Thread Direction
Right-hand
Thread Length
Between 0.490 inches and 0.510 inches
Fastener Length
Between 0.490 inches and 0.510 inches
Head Style
Headless (setscrew)
Point Style
Cup
Internal Drive Style
Hexagon
Thread Diameter
0.375 inches
Width Across Flats
Between 0.188 inches and 0.190 inches
Thready Qty Per Inch (tpi)
16
Hardness Rating
45.0 rockwell c and 53.0 rockwell c
Criticality Code Justification
Zzzy
Material
Steel
Surface Treatment
Cadmium and chromate
Special Test Features
Special quality control testing
Surface Treatment Specification
Qq-p-416 type 2 class 3 federal specification single treatment response
Test Data Document
81349-mil-p-23199 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Thread Series Designator
Unc
Reference Number Differentiating Characteristics
As differentiated by material which must conform to ships parts control center special quality control provisions and certified free from mercury contamination
NSN
5305-01-142-0304
Part Number
820-4551186-1
Description
Setscrew
CAGE
97370

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part 820-4551186-1 NSN 5305-01-142-0304

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
06672
FIIG:
A003B0
Concept No.:
App. Key:
SQ
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:
S

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318152000
  • SITC: 69421
  • End Use: Iron and steel products, other
  • NAICS: 332722
  • USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment

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