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5305-01-727-9397

Close Tolerance Screw

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Official Item Classification

Name
Close Tolerance Screw
(NSN) National Stock Number
5305-01-727-9397
(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
03/25/2025 (1 year ago)

flat countersunk head style, right-hand thread direction, 0.667 inches minimum and 0.697 inches maximum fastener length, 0.370 inches nominal thread length, 3a thread class

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.370 inches nominal

Fastener Length

0.667 inches minimum and 0.697 inches maximum

Head Style

flat countersunk

Head Diameter

0.508 inches nominal

Grip Diameter

0.249 inches nominal

Internal Drive Style

cross recess type 1

End Item Identification

rq-4a

Nominal Thread Diameter

0.250 inches

Grip Length

0.365 inches minimum and 0.385 inches maximum

Thread Quantity Per Inch

28

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Part Name Assigned By Controlling Agency

screw, close tolerance

Material

iron alloy 660 overall

Surface Treatment

passivate overall

Supplementary Features

passivated

Thread Series Designator

unf

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
NAS7504U6 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-727-9397?
The FSCG of the NSN 5305-01-727-9397 is 5305
Does the NSN 5305-01-727-9397 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-01-727-9397 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 5305-01-727-9397 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-727-9397 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 5305-01-727-9397 was assigned to the Federal Catalog?
It was assigned 1 year ago, on Tue, Mar 25, 2025