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Socket Head Cap Screw NSN 5305-01-212-0056

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 5305-01-212-0056 NSN: 5305-01-212-0056

Features and Characteristics

Thread Class
3a
Thread Direction
Right-hand
Thread Length
Between 0.744 inches and 0.875 inches
Fastener Length
Between 0.844 inches and 0.875 inches
Head Style
Flat chamfer
Head Diameter
Between 0.365 inches and 0.375 inches
Head Height
Between 0.244 inches and 0.250 inches
Locking Feature
Strip threads or patch threads
Internal Drive Style
Hexagon
Thread Diameter
0.250 inches
Width Across Flats
Between 0.1875 inches and 0.1900 inches
Thready Qty Per Inch (tpi)
20
Min. Tensile Strength (psi)
170000 pounds per square inch
Hardness Rating
38.0 rockwell c and 45.0 rockwell c
Minimum Yield Strength
150000 pounds per square inch
Material
Steel
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response
Thread Series Designator
Unc
Nondefinitive Specification/std Data
6 type
FSC
5305 Screws
NIIN
012120056
NSN
5305012120056

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS16997-61L
Cage Code:
96906
Status:
A
MSDS:
Part Number:
FF-S-86
Cage Code:
81348
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 5305-01-212-0056
What are the manufacturers of nsn 5305012120056?
Does this nsn 5305012120056 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305012120056
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 5305012120056 contain any precious metals?
No precious metal content.
Does nsn 5305012120056 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305012120056?
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

What do you get when you order from nationalstocknumber.org?

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