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STD2180E80 Close Tolerance Screw

5305-00-471-6652

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Official Item Classification

Name
Close Tolerance Screw
Part Number
STD2180E80
(NSN) National Stock Number
5305-00-471-6652
(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
05/08/1970 (56 years ago)

right-hand thread direction, 0.240 inches nominal thread length, 1.040 inches nominal fastener length, 3a thread class, flat countersunk head style

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.240 inches nominal

Fastener Length

1.040 inches nominal

Head Style

flat countersunk

Head Diameter

0.452 inches minimum and 0.510 inches maximum

Grip Diameter

0.2495 inches minimum and 0.2504 inches maximum

Internal Drive Style

high-torque

Nominal Thread Diameter

0.250 inches

Grip Length

0.800 inches nominal

Thread Quantity Per Inch

28

Countersink Angle

99.0 degrees minimum and 101.0 degrees maximum

Material

titanium alloy overall

Surface Treatment

cadmium overall

Surface Treatment Document And Classification

std.2167 cagec k0289 mfr ref single treatment response overall

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
99-6038831 Close Tolerance Screw
STD2180E80 Close Tolerance Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-00-471-6652?
The FSCG of the NSN 5305-00-471-6652 is 5305
Does the NSN 5305-00-471-6652 have a Schedule B code assigned?
Yes, the Schedule B code is 8109900000
Does NSN 5305-00-471-6652 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 5305-00-471-6652 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-00-471-6652 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 5305-00-471-6652 was assigned to the Federal Catalog?
It was assigned 56 years ago, on Fri, May 8, 1970