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5305-00-997-0579

Find complete technical information, availability, and procurement data for: 5305-00-997-0579

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5305-00-997-0579
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-997-0579
Item Name Code
06657
Assigment Date
04/11/1967 (59 years ago)

A deformable material which prevents the passage of matter through the joint formed when two faces are joined. It may be metallic or nonmetallic, lubricated or impregnated, solid or hollow cross section. It may be made to any predetermined dimension and shape. Excludes:flat disks, items made of felt material and items having joints. For round metal and plastic items with an aperture and a solid rectangular cross section, see washer, flat; shim; bearing, washer, thrust; and spacer ring. Excludes:disk, valve; seal, nonmetallic angle; seal, nonmetallic channel; seal, nonmetallic special shaped section; shielding gasket, electronic; and ring, sealing jar.

2a thread class, flat countersunk head style, right-hand thread direction, 1.625 inches nominal fastener length, 1.625 inches maximum thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Class
2a
Thread Direction
right-hand
Thread Length
1.625 inches maximum
Fastener Length
1.625 inches nominal
Head Style
flat countersunk
Head Diameter
0.207 inches minimum and 0.225 inches maximum
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.112 inches
Thread Quantity Per Inch
40
Countersink Angle
80.0 degrees minimum and 82.0 degrees maximum
Screw Material
steel
Screw Surface Treatment
cadmium and chromate
Thread Series Designator
unc

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number Name
P342-0297-00 Machine Screw
P342-0297-000 Machine Screw

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5305-00-997-0579?
The FSCG of the NSN 5305-00-997-0579 is 5305
Does the NSN 5305-00-997-0579 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-997-0579 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 5305-00-997-0579 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-997-0579 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 5305-00-997-0579 was assigned to the Federal Catalog?
It was assigned 59 years ago, on Tue, Apr 11, 1967

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