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5305-00-081-6348

Machine Screw

Find complete technical information, availability, and procurement data for NSN 5305-00-081-6348 All details are based on official government and industry records to support accurate and compliant procurement.

5305-00-081-6348
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-081-6348
Item Name Code
06657
Assigment Date
12/18/1967 (58 years ago)

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.

0.676 inches nominal fastener length, 0.426 inches minimum thread length, flat countersunk head style, right-hand thread direction, 3a thread class

Characteristics

Below are the official specifications and performance details for this part, including technical data, material composition, and compliance information.

Thread Class
3a
Thread Direction
right-hand
Thread Length
0.426 inches minimum
Fastener Length
0.676 inches nominal
Head Style
flat countersunk
Head Diameter
0.461 inches minimum and 0.507 inches maximum
Internal Drive Style
high-torque
Nominal Thread Diameter
0.250 inches
Thread Quantity Per Inch
28
Minimum Tensile Strength
160000 pounds per square inch
Hardness Rating
36.0 rockwell c minimum and 40.0 rockwell c maximum
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Screw Material
steel
Screw Surface Treatment
primer
Thread Series Designator
unf

Related Parts & Specifications

This NSN includes a range of related parts designed for specific operational needs. Review each item below to find in-depth specifications, functional details, and guidance for correct application and replacement.

Part Number Name
3MFR1221-4-4P Machine Screw

Classification Data

Detailed NSN information including identification codes, classification data, and key indicators used for cataloging, logistics, and supply management.

Type of Item Identification
1 - Full descriptive item identification
Automatic Data Processing Point
0 - Represents items with no adp components
Source of Supply
S9I - Defense industrial supply center philadelphia, pennsylvania 19111
Demilitarization
A - Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Criticality
X - The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Federal Item Identification Guide
A500D0
Precious Metals Indicator
A - Item does not contain precious metal.
Pseudo Item Name Code
0006657
Hazardous Material Indicator
N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Schedule B Code
7318152000

Freight Information

Comprehensive freight classifications, shipping codes, and handling specifications for domestic and international transport compliance.

Major Organizational Entity
KZ

FAQs

Get insights on installation procedures, operating conditions, care instructions, industry regulations, and common issues. FAQs below provide key information for 5305-00-081-6348

What is the FSCG of the NSN 5305-00-081-6348?
The FSCG of the NSN 5305-00-081-6348 is 5305
Does the NSN 5305-00-081-6348 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-081-6348 require demilitarization?
Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.
Does NSN 5305-00-081-6348 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-081-6348 contain hazardous materials?
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
When the NSN 5305-00-081-6348 was assigned to the Federal Catalog?
It was assigned 58 years ago, on Mon, Dec 18, 1967

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