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5305-01-274-2894

Externally Relieved Body Screw

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Official Item Classification

Name
Externally Relieved Body Screw
(NSN) National Stock Number
5305-01-274-2894
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
01852
(FIIG) Federal Item Identification Guide
A003B0
Date
03/07/1988 (38 years ago)

0.596 inches nominal fastener length, right-hand thread direction, 2a thread class, 0.172 inches minimum and 0.204 inches maximum thread length, oval countersunk head style

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.172 inches minimum and 0.204 inches maximum

Fastener Length

0.596 inches nominal

Head Style

oval countersunk

Head Diameter

0.195 inches minimum and 0.225 inches maximum

First Diameter From Head

0.073 inches minimum and 0.083 inches maximum

Distance From Largest Bearing Surface Of Head To End Of First Diameter

0.245 inches nominal

Point Style

flat

Internal Drive Style

slot

Nominal Thread Diameter

0.112 inches

Thread Quantity Per Inch

40

Countersink Angle

81.0 degrees minimum and 83.0 degrees maximum

Criticality Code Justification

zzzy

Externally Relieved Body Diameter Quantity

1

Material

steel comp 303 or steel comp 303 plus x or steel comp 303cu or steel comp 303ma or steel comp 303se or steel comp 303pb overall

Material Document And Classification

mil-w-52263 mil spec all material responses or astm a581 assn std all material responses overall

Surface Treatment

passivate overall

Special Test Features

special quality control testing

Surface Treatment Document And Classification

mil-f-14072-e300 mil spec single treatment response overall

Test Data Document

"81349-mil-p-23199 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."

Thread Series Designator

unc

Reference Number Differentiating Characteristics

as differentiated by material which must conform to ships parts control center special quality control provisions

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

Criticality Code
S

The item is a non-aviation critical safety item (csi) whose failure will result in serious damage to equipment or serious injury or death to personnel.

Hazardous Metals Indicator
N

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

Pseudo Item Name Code

0001852

Related Hardware Products

Part Number Description
6212-SS-0440-7 Externally Relieved Body Screw
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Frequently Asked Questions

What is the FSCG of the NSN 5305-01-274-2894?
The FSCG of the NSN 5305-01-274-2894 is 5305
Does the NSN 5305-01-274-2894 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-274-2894 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 5305-01-274-2894 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-274-2894 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 5305-01-274-2894 was assigned to the Federal Catalog?
It was assigned 38 years ago, on Mon, Mar 7, 1988