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5305-00-902-2143

Find complete technical information, availability, and procurement data for: 5305-00-902-2143

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5305-00-902-2143
Federal Supply Group
Hardware and Abrasives
Federal Supply Classification
5305 Screws
National Stock Number
5305-00-902-2143
Item Name Code
06657
Assigment Date
01/01/1960 (66 years ago)

A circular shaped item with an aperture manufactured to predetermined dimensions and designed for use as a seal in stuffing boxes, packing nuts, and the like. It may be (1) any nonmetallic molded or formed ring (except solid (without joint) rings having a square or rectangular cross section); or (2) any shredded metal or metal foil type metallic or semimetallic rings. Excludes:felt items but includes multimaterial items in which one of the materials is felt. For solid (without joints) nonmetallic items with a square or rectangular cross section, see washer (as modified) and gasket. For rubber items specifically designed for weather-proofing doors, windows, chests, and the like see seal, nonmetallic angle; seal, nonmetallic channel; and seal, nonmetallic, special shaped section. For circular (with aperature) nonmetallic items with a solid round cross-section see o-ring. Excludes:cup, compression; gasket; washer (as modified); and felt, mechanical, preformed.

flat countersunk head style, 2.906 inches minimum and 3.000 inches maximum fastener length, 2a thread class, right-hand thread direction, 2.844 inches minimum and 2.906 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
2.844 inches minimum and 2.906 inches maximum
Fastener Length
2.906 inches minimum and 3.000 inches maximum
Head Style
flat countersunk
Head Diameter
0.285 inches minimum and 0.332 inches maximum
Internal Drive Style
cross recess type 1
Nominal Thread Diameter
0.164 inches
Thread Quantity Per Inch
32
Countersink Angle
99.0 degrees minimum and 101.0 degrees maximum
Screw Material
steel corrosion resisting
Screw Material Document And Classification
66 fed std single material response
Screw Surface Treatment
passivate
Thread Series Designator
unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
5305-00-051-2357 No Name Available 11/20/1968

Related Parts

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112-1055-045 Machine Screw
9145-345 Machine Screw
965813-345C Machine Screw
AIC813-08-R46 Machine Screw
AOL4168-345 Machine Screw
E125-345 Machine Screw
FS2003-08/345C Machine Screw
MS24693-C66 Machine Screw
PBF1068-345C Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-00-902-2143?
The FSCG of the NSN 5305-00-902-2143 is 5305
Does the NSN 5305-00-902-2143 have a Schedule B code assigned?
Yes, the Schedule B code is 7318152000
Does NSN 5305-00-902-2143 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 5305-00-902-2143 contain precious materials?
Precious metal content is unknown
Does NSN 5305-00-902-2143 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 5305-00-902-2143 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

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