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NAS1204-1 Close Tolerance Screw

5305-00-075-9047

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Official Item Classification

Name
Close Tolerance Screw
Part Number
NAS1204-1
(NSN) National Stock Number
5305-00-075-9047
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
29294
(FIIG) Federal Item Identification Guide
A003B0
Date
01/01/1963 (63 years ago)

0.363 inches minimum and 0.393 inches maximum fastener length, flat countersunk head style, 3a thread class, 0.291 inches minimum and 0.341 inches maximum thread length, right-hand thread direction

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.291 inches minimum and 0.341 inches maximum

Fastener Length

0.363 inches minimum and 0.393 inches maximum

Head Style

flat countersunk

Head Diameter

0.497 inches minimum and 0.507 inches maximum

Grip Diameter

0.2485 inches minimum and 0.2495 inches maximum

Shank Unthreaded Hole Diameter

0.076 inches nominal first hole

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.250 inches

Grip Length

0.052 inches minimum and 0.072 inches maximum

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 overall

Countersink Angle

100.0 degrees nominal

Distance From Head Largest Bearing Surface To Shank Hole Center

0.262 inches nominal first hole

Material

steel overall

Surface Treatment

cadmium and chromate overall

Thread Series Designator

unjf

Regulatory Compliance

Precious Metals Indicator
A

Item does not contain precious metal.

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

0029294

Related Hardware Products

Part Number Description
NAS1204-1 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-075-9047?
The FSCG of the NSN 5305-00-075-9047 is 5305
Does the NSN 5305-00-075-9047 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-075-9047 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 5305-00-075-9047 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-075-9047 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 5305-00-075-9047 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963