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5305-01-334-4638

Find complete technical information, availability, and procurement data for: 5305-01-334-4638

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5305-01-334-4638
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-01-334-4638
Item Name Code
01852
Assigment Date
02/23/1991 (35 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes:thumbscrew.

pan head style, 0.344 inches minimum and 0.375 inches maximum fastener length, 2a thread class, 0.275 inches minimum and 0.285 inches maximum thread length, right-hand thread direction

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
0.275 inches minimum and 0.285 inches maximum
Fastener Length
0.344 inches minimum and 0.375 inches maximum
Head Style
pan
Head Diameter
0.256 inches minimum and 0.270 inches maximum
Head Height
0.087 inches minimum and 0.097 inches maximum
First Diameter From Head
0.093 inches minimum and 0.097 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter
0.090 inches minimum and 0.100 inches maximum
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.138 inches
Thread Quantity Per Inch
32
Externally Relieved Body Diameter Quantity
1
Material
steel comp 301 or steel comp 302 or steel comp 302b or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 308 or steel comp 309 or steel comp 309s or steel comp 310 or steel comp 310s or steel comp 314 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 347 or steel comp 348 or steel comp 384 or steel comp 385 overall
Surface Treatment
passivate overall
Surface Treatment Document And Classification
astm a380 assn std single treatment response overall
Thread Series Designator
unc

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
710980 Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-01-334-4638?
The FSCG of the NSN 5305-01-334-4638 is 5305
Does the NSN 5305-01-334-4638 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-334-4638 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 5305-01-334-4638 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-334-4638 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 5305-01-334-4638 was assigned to the Federal Catalog?
It was assigned 35 years ago, on Sat, Feb 23, 1991

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