NSN NAS720B4-3

A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use shim. For items fabricated from ceramic or electrically rated materials by specification or industry standards use insulator (1), washer. Excludes:disk, valve, graphite impregnated and lubricated items.

pan no. 2 head style, 0.205 inches minimum and 0.219 inches maximum head diameter, slot internal drive style, 0.058 inches minimum and 0.068 inches maximum head height, 0.188 inches nominal fastener length.

NSN 5305-01-412-1449 Datasheet

(NSN) National Stock Number

5305-01-412-1449

(FSG) Federal Supply Group

53 - Hardware and Abrasives

(FSC) Federal Supply Classification

5305 - Screws

(NIIN) National Item Identification Number

01-412-1449

Requires Demilitarization

Yes

(INC) Item Name Code

06660

Date

Wed, Apr 12, 1995

Schedule B Code

7415338550

Fastener Length

0.188 inches nominal

Head Diameter

0.205 inches minimum and 0.219 inches maximum

Head Height

0.058 inches minimum and 0.068 inches maximum

Head Style

pan no. 2

Internal Drive Style

slot

Material

unable to decode

Nominal Thread Diameter

0.112 inches

Primary Washer Style

split helical ring

Primary Washer Material Thickness

0.025 inches nominal

Primary Washer Outside Diameter

0.209 inches minimum

Secondary Washer Material Thickness

0.013 inches minimum and 0.019 inches maximum

Secondary Washer Outside Diameter

0.213 inches minimum and 0.223 inches maximum

Secondary Washer Style

flat

Secondary Washer Relationship To Primary Washer

not identical

Specification/Standard Data

80205-nas720 professional/industrial association standard

Surface Treatment

unable to decode

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.107 inches nominal

Thread Quantity Per Inch

40

Thread Series Designator

unified national coarse (unc)

Washer Quantity

2

Identification

Demilitarization Code

A - 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.

Precious Metals Indicator

A - Item does not contain precious metal.

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

Cross Reference

CAGE Codes

80205

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use

Civilian standards and standards organizations (ex:iso,din,bs,ansi)

Freight Information

Schedule B & Trade

Schedule B

7415-33-8550

Description

other copper screws (not for wood) bolts and nuts

End Use

12300 - Finished metal shapes

Unit of Quantity

KG

USDA

Yes

(SITC) Standard International Trade Classification

69433

(NAICS) North American Industrial Classification System

332722

Questions & Answers

1. What is the FSCG of the NSN 5305-01-412-1449?

   The FSCG of the NSN 5305-01-412-1449 is 5305

2. Does the NSN 5305-01-412-1449 have a Schedule B code assigned?

   Yes, the Schedule B code is 7415338550

3. Does NSN 5305-01-412-1449 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.

4. Does NSN 5305-01-412-1449 contain precious materials?

   Item does not contain precious metal.

5. Does NSN 5305-01-412-1449 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.

6. When the NSN 5305-01-412-1449 was assigned to the Federal Catalog?

   It was assigned 31 years ago, on Wed, Apr 12, 1995