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Machine Screw NSN 5305-00-531-1261

Item Description

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

NSN 5305-00-531-1261 NSN: 5305-00-531-1261

Features and Characteristics

Thread Class
2a
Thread Direction
Right-hand
Thread Length
1.688 inches
Fastener Length
1.750 inches
Head Style
Pan
Head Diameter
Between 0.357 inches and 0.373 inches
Head Height
Between 0.122 inches and 0.133 inches
Internal Drive Style
Cross recess type 1
Thread Diameter
0.190 inches
Thready Qty Per Inch (tpi)
32
Min. Tensile Strength (psi)
62000 pounds per square inch
Screw Material
Aluminum alloy 2024 or aluminum alloy 2017
Screw Material Specification
Qq-a-200/3 federal specification 1st material response or qq-a-225/6 federal specification 1st material response or qq-a-225/5 federal specification 2nd material response
Screw Surface Treatment
Oxide film
Screw Surface Treatment Specification
Mil-c-5541 military specification single treatment response
Thread Series Designator
Unf
FSC
5305 Screws
NIIN
005311261
NSN
5305005311261

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
MS35219-62
Cage Code:
96906
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7616106000
  • NAICS: 332722
  • SITC: 69440
  • Description: Threaded fasteners of aluminum
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5305-00-531-1261
What are the manufacturers of nsn 5305005311261?
Does this nsn 5305005311261 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5305005311261
An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). no. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. a locking feature may be incorporated in the design of the head or threads. excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. see also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.
Does nsn 5305005311261 contain any precious metals?
Precious metal content is unknown.
Does nsn 5305005311261 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5305005311261?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
06657
FIIG:
A500D0
App. Key:
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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