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9431663 Assembled Washer Screw

5305-01-157-7388

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Official Item Classification

Name
Assembled Washer Screw
Part Number
9431663
(NSN) National Stock Number
5305-01-157-7388
(FSG) Federal Supply Group
53 Hardware and Abrasives
(FSC) Federal Supply Classification
5305 Screws
(INC) Item Name Code
06660
(FIIG) Federal Item Identification Guide
A003B0
Date
07/11/1983 (43 years ago)

0.578 inches minimum and 0.682 inches maximum thread length, 0.720 inches minimum and 0.750 inches maximum fastener length, right-hand thread direction, 3a thread class, pan head style

Specs & Compatibility

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.578 inches minimum and 0.682 inches maximum

Fastener Length

0.720 inches minimum and 0.750 inches maximum

Head Style

pan

Head Diameter

0.594 inches minimum and 0.615 inches maximum

Head Height

0.203 inches minimum and 0.218 inches maximum

Washer Quantity

1

Internal Drive Style

cross recess type 1

Nominal Thread Diameter

0.312 inches

Thread Quantity Per Inch

18

Hardness Rating

44.0 rockwell c minimum and 48.0 rockwell c maximum primary washer

Primary Washer Outside Diameter

0.620 inches minimum and 0.640 inches maximum

Primary Washer Style

spring tension

Primary Washer Material Thickness

0.052 inches minimum and 0.060 inches maximum

Material Document And Classification

sae assn std all material responses primary washer

Material Document And Classification

sae assn std all material responses fastener

Surface Treatment

zinc overall

Surface Treatment Document And Classification

g-4342-m,code 20u32,fscm 11862 mfr ref single treatment response overall

Thread Series Designator

unrc

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

0006660

Related Hardware Products

Part Number Description
9431663 Assembled Washer Screw

Frequently Asked Questions

What is the FSCG of the NSN 5305-01-157-7388?
The FSCG of the NSN 5305-01-157-7388 is 5305
Does NSN 5305-01-157-7388 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 5305-01-157-7388 contain precious materials?
Item does not contain precious metal.
Does NSN 5305-01-157-7388 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 5305-01-157-7388 was assigned to the Federal Catalog?
It was assigned 43 years ago, on Mon, Jul 11, 1983