NSN 247283

A thin flat metal or plastic item of various peripheral shapes having a solid or laminated cross-section. It is designed to maintain a predetermined distance between two surfaces. For round items without a hole and having a solid rectangular cross-section use disk, solid, plain. Items with either (1) a solid (not laminated) cross-section, or (2) a non-separable laminated cross-section with one hole centrally located, must have a thickness less than 0.006 inch (0.152 mm) for items less than 1/4 inch (6.35 mm) outside diameter or shortest distance across peripheral flats, and less than 0.016 inch (0.406 mm) for items 1/4 inch (6.35 mm) or more outside diameter, or shortest distance across peripheral flats. For items with thickness greater than those indicated above, see spacer, plate; washer, flat and spacer, ring. When thickness and/or outside diameter or shortest distance across peripheral flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance. See also shim stock, laminated; shim stock assortment, gasket; and bearing, washer, thrust.

0.380 inches nominal fastener length, 0.230 inches nominal distance from largest bearing surface of head to end of first diameter, 1 externally relieved body diameter quantity, 0.080 inches nominal first diameter from head, 0.179 inches nominal head diameter.

NSN 5305-01-187-1897 Datasheet

(NSN) National Stock Number

5305-01-187-1897

(FSG) Federal Supply Group

53 - Hardware and Abrasives

(FSC) Federal Supply Classification

5305 - Screws

(NIIN) National Item Identification Number

01-187-1897

Requires Demilitarization

Yes

(INC) Item Name Code

01852

Date

Tue, Aug 21, 1984

Distance From Largest Bearing Surface Of Head To End Of First Diameter

0.230 inches nominal

Externally Relieved Body Diameter Quantity

1

Fastener Length

0.380 inches nominal

First Diameter From Head

0.080 inches nominal

Head Diameter

0.179 inches nominal

Head Height

0.110 inches nominal

Head Style

flat chamfer

Internal Drive Style

hexagon

Material

steel corrosion resisting overall

Nominal Thread Diameter

0.112 inches

Surface Treatment

passivate overall

Thread Class

3a

Thread Direction

right-hand

Thread Length

0.150 inches nominal

Thread Quantity Per Inch

40

Thread Series Designator

unified national coarse (unc)

Width Across Flats

0.094 inches nominal

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

0001852

Cross Reference

CAGE Codes

09205

Lockheed Martin Corp Electronics and Missiles Div

U.s./canadian manufacturers

31095

Millipart, Inc

U.s./canadian manufacturers

Freight Information

Air Commodity

AZ -

Air Dimension

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

Less than Carload Rating

U - 50.0

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

Questions & Answers

1. What is the FSCG of the NSN 5305-01-187-1897?

   The FSCG of the NSN 5305-01-187-1897 is 5305

2. Does NSN 5305-01-187-1897 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.

3. Does NSN 5305-01-187-1897 contain precious materials?

   Item does not contain precious metal.

4. Does NSN 5305-01-187-1897 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.

5. When the NSN 5305-01-187-1897 was assigned to the Federal Catalog?

   It was assigned 42 years ago, on Tue, Aug 21, 1984