Socket Head Cap Screw NSN 5305-01-277-9902

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: 5305-01-277-9902

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Features and Characteristics

Thread Class

Thread Direction

Right-hand

Thread Length

Between 1.761 inches and 1.894 inches

Fastener Length

Between 1.938 inches and 2.000 inches

Head Style

Flat countersunk

Head Diameter

Between 0.442 inches and 0.507 inches

Locking Feature

Pellet threads or strip threads or patch threads

Internal Drive Style

Cross recess type 1

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Hardness Rating

36.0 rockwell c fastener and 40.0 rockwell c fastener

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Material

Steel comp e4340 fastener or steel comp 4140 fastener or steel comp 8740 fastener or steel comp 8735 fastener or steel comp 6150 fastener

Material Specification

Mil-s-5000 military specification 1st material response fastener or mil-s-5626 military specification 2nd material response fastener or mil-s-6049 military specification 3rd material response fastener or mil-s-6098 military specification 4th material response fastener or mil-s-8503 military specification 5th material response fastener

Surface Treatment

Cadmium fastener and chromate fastener

Surface Treatment Specification

Qq-p-416 type 2 cl 2 federal specification single treatment response fastener

Thread Series Designator

Unjf

Specification Data

80205-nas1189 professional/industrial association standard

FSC

5305 Screws

NIIN

012779902

NSN

5305012779902

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

NAS1189-4P32

Cage Code:

80205

Status:

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 5305-01-277-9902

What are the manufacturers of nsn 5305012779902?

National Aerospace Standards (80205)

Does this nsn 5305012779902 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 5305012779902
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 5305012779902 contain any precious metals?
No precious metal content.

Does nsn 5305012779902 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 5305012779902?
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:

Cond. Code:

Status:

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Certificate of Conformance
Quality Inspected Parts
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