Model: NAS1351-4-40P

Socket Head Cap Screw

Special Features:

Head has a drive hex; surface finish cadmium ii plating type 2, class 2; material alloy steel

Properties:

Thread Class
3a
Thread Direction
Right-hand
Thread Length
1.000 inches
Fastener Length
2.500 inches
Head Style
Spline drive shear head
Head Height
0.250 inches
Head Minor Diameter
Between 0.365 inches and 0.375 inches
Internal Drive Style
Hexagon
End Application
Rq-1a predator
Thread Diameter
0.2500 inches
Width Across Flats
0.188 inches
Thready Qty Per Inch (tpi)
28
Part Name Assigned By Controlling Agency
Screw, cap, socket head
Material
Steel
Surface Treatment
Cadmium
Thread Series Designator
Unrf
NSN
5305-01-513-0579
Part Number
NAS1351-4-40P
Description
Screw,cap,socket Head
CAGE
80205

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part NAS1351-4-40P NSN 5305-01-513-0579

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
Concept No.:
App. Key:
SC
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:
A
ESD:
A
MMAC:
UV
CRITL:
X

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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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