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5305-00-991-9044

Externally Relieved Body Screw

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Official Item Classification

Name
Externally Relieved Body Screw
(NSN) National Stock Number
5305-00-991-9044
(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
01/01/1963 (63 years ago)

4.730 inches nominal fastener length, 0.590 inches minimum thread length, right-hand thread direction, 2a thread class, flat chamfer head style

Specs & Compatibility

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.590 inches minimum

Fastener Length

4.730 inches nominal

Head Style

flat chamfer

Head Diameter

0.281 inches nominal

Head Height

0.250 inches nominal

First Diameter From Head

0.187 inches nominal

Second Diameter From Head

0.147 inches minimum and 0.149 inches maximum

Third Diameter From Head

0.187 inches nominal

Fourth Diameter From Head

0.138 inches minimum and 0.144 inches maximum

Fifth Diameter From Head

0.281 inches nominal

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

0.260 inches nominal

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

0.313 inches nominal

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

0.433 inches nominal

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

4.020 inches nominal

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

4.140 inches nominal

Internal Drive Style

slot

Nominal Thread Diameter

0.190 inches

Thread Quantity Per Inch

32

Externally Relieved Body Diameter Quantity

3

Material

steel comp 303 overall

Material Document And Classification

qq-s-764 cond a fed spec single material response overall

Surface Treatment

passivate overall

Surface Treatment Document And Classification

a1049436 fscm 90348 mfr ref single treatment response overall

Thread Series Designator

unf

Regulatory Compliance

Precious Metals Indicator
U

Precious metal content is unknown

Criticality Code
X

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

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
2064187 Externally Relieved Body Screw
2064187G001 Externally Relieved Body Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-991-9044?
The FSCG of the NSN 5305-00-991-9044 is 5305
Does the NSN 5305-00-991-9044 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-991-9044 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 5305-00-991-9044 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-991-9044 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 5305-00-991-9044 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963