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5305-01-281-1803

Find complete technical information, availability, and procurement data for: 5305-01-281-1803

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5305-01-281-1803
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-281-1803
Item Name Code
06657
Assigment Date
06/18/1988 (38 years ago)

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

right-hand thread direction, 1.188 inches minimum and 1.250 inches maximum fastener length, 2a thread class, 1.060 inches minimum and 1.178 inches maximum thread length, flat countersunk head style

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2a
Thread Direction
right-hand
Thread Length
1.060 inches minimum and 1.178 inches maximum
Fastener Length
1.188 inches minimum and 1.250 inches maximum
Head Style
flat countersunk
Head Diameter
0.285 inches minimum and 0.332 inches maximum
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.164 inches
Thread Quantity Per Inch
36
Minimum Tensile Strength
60000 pounds per square inch
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Screw Material
steel
Screw Material Document And Classification
66 fed std single material response
Screw Surface Treatment
cadmium and chromate
Screw Surface Treatment Document And Classification
qq-p-416 ty 2 cl 3 fed spec single treatment response
Thread Series Designator
unf
Nondefinitive Spec/Std Data
3 type and 3c style

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
MS24693-S256 Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-01-281-1803?
The FSCG of the NSN 5305-01-281-1803 is 5305
Does the NSN 5305-01-281-1803 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-281-1803 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 5305-01-281-1803 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-281-1803 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 5305-01-281-1803 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Sat, Jun 18, 1988

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