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Socket Head Cap Screw NSN 5305-01-374-3278

Item Description

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.

NSN 5305-01-374-3278 NSN: 5305-01-374-3278

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.905 inches and 1.016 inches
Fastener Length
1.250 inches
Head Style
Flat countersunk
Head Diameter
Between 0.720 inches and 0.781 inches
Spline Minor Diameter
Between 0.212 inches and 0.214 inches
Spline Major Diameter
Between 0.249 inches and 0.251 inches
Spline Width
Between 0.064 inches and 0.065 inches
Locking Feature
Patch threads or pellet threads or strip threads
Internal Drive Style
Six spline
Thread Diameter
0.375 inches
Thready Qty Per Inch (tpi)
18
Hardness Rating
42.0 rockwell c fastener
Countersink Angle
Between 80.0 degrees and 84.0 degrees
Material
Plastic polyamide locking featuresteel fastener
Thread Series Designator
Unc
Nondefinitive Specification/std Data
5 type
FSC
5305 Screws
NIIN
013743278
NSN
5305013743278

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
FF-S-86
Cage Code:
81348
Status:
A
MSDS:
Part Number:
704-5768570 ITEM 58 TYPE VI
Cage Code:
53711
Status:
A
MSDS:
Part Number:
60-16-9622
Cage Code:
96169
Status:
A
MSDS:
Part Number:
5768570 ITEM 58
Cage Code:
53711
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318152000
  • NAICS: 332722
  • SITC: 69421
  • Description: Bolts and bolts and their nuts or washers exported in the same shipment
  • End Use (Code 12110):
    Iron and steel products, other

Q & A

Frequently asked questions for NSN 5305-01-374-3278
What are the manufacturers of nsn 5305013743278?
Does this nsn 5305013743278 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305013743278
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.
Does nsn 5305013743278 contain any precious metals?
No precious metal content.
Does nsn 5305013743278 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305013743278?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
16282
FIIG:
A003B0
App. Key:
SC
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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