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NSN 3M9766

Fixed Moun Mechanical Tachometer

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.

round case shape, not provided dial illumination, not provided ahead-astern semaphore, 1 dial quantity, black dial background color.

NSN 6680-00-994-7273 Datasheet

(NSN) National Stock Number
6680-00-994-7273
(NIIN) National Item Identification Number
00-994-7273
Requires Demilitarization
Yes
(INC) Item Name Code
07115
Date
Mon, Jan 1, 1962
Ahead-Astern Semaphore
not provided
Case Shape
round
Dial Background Color
black
Dial Illumination
not provided
Dial Quantity
1
Drive Connection Type
flexible
Graduation Unit
1.0 hours operated
Major Graduation Color
white
Material
brass case
Minor Graduation Color
white
Mounting Feature Type
flush
Mounting Type
panel
Operating Range
+0.0 to 1500.0 revolutions per minute
Overall Depth
2.297 inches nominal
Overall Diameter
3.344 inches nominal
Pointer Quantity
1
Pointer Color
white
Pointer Finish
any acceptable
Pointer Movement Direction
counterclockwise
Scale Finish
any acceptable
Scale Measurement Range
+0.0 to 1500.0
Scale Measurement Unit
revolutions per minute
Scale Quantity
1
Scale Smallest Increment
50.0 revolutions per minute
Shaft Rotation Direction
clockwise
Totalizing Mechanism Calibration
hours operated
Totalizing Mechanism
provided
Case Material
unable to decode
Driven Speed To Indicated Speed Minimum Ratio
unable to decode
Unit Type
magnetic

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
0007115

Cross Reference

CAGE Codes

11083
Caterpillar Inc Div Caterpillar Defense
U.s./canadian manufacturers
57733
Stewart-Warner Corporation
U.s./canadian manufacturers

Freight Information

Air Commodity
VZ -
Air Dimension
A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
National Motor Freight Class Rating
J - 100.0
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
87150
Water Commodity
653 - Musical instruments
National Motor Freight Classification Item Number
177220

Questions & Answers

  1. What is the FSCG of the NSN 6680-00-994-7273?

    The FSCG of the NSN 6680-00-994-7273 is 6680

  2. Does NSN 6680-00-994-7273 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 6680-00-994-7273 contain precious materials?

    Precious metal content is unknown

  4. Does NSN 6680-00-994-7273 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 6680-00-994-7273 was assigned to the Federal Catalog?

    It was assigned 64 years ago, on Mon, Jan 1, 1962

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