NSN 451633

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.

slot internal drive style, 0.208 inches minimum and 0.226 inches maximum head diameter, fillister head style, 0.086 inches minimum and 0.096 inches maximum head height, 0.344 inches minimum and 0.375 inches maximum fastener length.

NSN 5305-00-281-6390 Datasheet

(NSN) National Stock Number

5305-00-281-6390

(FSG) Federal Supply Group

53 - Hardware and Abrasives

(FSC) Federal Supply Classification

5305 - Screws

(NIIN) National Item Identification Number

00-281-6390

Requires Demilitarization

Yes

(INC) Item Name Code

06660

Date

Tue, Jan 1, 1963

Schedule B Code

7318152000

Fastener Length

0.344 inches minimum and 0.375 inches maximum

Head Diameter

0.208 inches minimum and 0.226 inches maximum

Head Height

0.086 inches minimum and 0.096 inches maximum

Head Style

fillister

Internal Drive Style

slot

Material Document And Classification

Material

Material

unable to decode

Nominal Thread Diameter

0.138 inches

Primary Washer Style

split helical ring

Primary Washer Material Thickness

0.031 inches nominal

Primary Washer Outside Diameter

0.218 inches minimum and 0.231 inches maximum

Surface Treatment

Thread Class

2a

Thread Direction

right-hand

Thread Length

0.312 inches minimum

Thread Quantity Per Inch

32

Thread Series Designator

unified national coarse (unc)

Washer Quantity

1

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

U - Precious metal content is unknown

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

16764

General Motors Corp Delco Remy Div

U.s./canadian manufacturers

1LW55

Borgwarner Pds (anderson), L.l.c.

Non-manufacturers

24617

General Motors Corp

U.s./canadian manufacturers

Freight Information

Air Commodity

BZ -

Air Dimension

A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.

National Motor Freight Class Rating

W - Rating variable

Special Handling

9 - Other or no special handling required (sh)

Type of Cargo

Z - No special type of cargo code applicable

Uniform Freight Classification Item Number

48950

Water Commodity

713 - Metal hardware

National Motor Freight Classification Item Number

093486

Schedule B & Trade

Schedule B

7318-15-2000

Description

bolts and bolts and their nuts or washers exported in the same shipment

End Use

12110 - Iron and steel products, other

Unit of Quantity

KG

USDA

Yes

(SITC) Standard International Trade Classification

69421

(NAICS) North American Industrial Classification System

332722

Questions & Answers

1. What is the FSCG of the NSN 5305-00-281-6390?

   The FSCG of the NSN 5305-00-281-6390 is 5305

2. Does the NSN 5305-00-281-6390 have a Schedule B code assigned?

   Yes, the Schedule B code is 7318152000

3. Does NSN 5305-00-281-6390 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 5305-00-281-6390 contain precious materials?

   Precious metal content is unknown

5. Does NSN 5305-00-281-6390 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 5305-00-281-6390 was assigned to the Federal Catalog?

   It was assigned 63 years ago, on Tue, Jan 1, 1963