Inspection Gages and Precision Layout Tools from United States (US)

Question 1

What is Federal Supply Class 5220?

Accepted Answer

FSC 5220 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 5220) in the USA for supply items codified in the category of Inspection Gages and Precision Layout Tools.

Question 2

What is NATO Supply Classification Class 5220?

Accepted Answer

NSC 5220 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5220 in the USA) for supply items codified in the category of Inspection Gages and Precision Layout Tools.

Question 3

Which Federal Supply Group is FSC 5220 in?

Accepted Answer

FSC 5220 is in Federal Supply Group (FSG) 52 which contains Measuring Tools.

Question 4

Which NATO Supply Classification Group is NSC 5220 in?

Accepted Answer

NSC 5220is in NATO Supply Classification Group (NSG) 52 which contains Measuring Tools.

Question 5

What is a Parallel?

Accepted Answer

A Parallel is one or more precision ground tools with two or more opposite sides parallel, made in various shapes and sizes. It is used for laying off, setting up, inspecting and supporting work to be machined.

Question 6

What is an Adjustable Angle Plate?

Accepted Answer

An Adjustable Angle Plate (PLATE,ANGLE,ADJUSTABLE) is a cast-iron or steel fixture having a precision ground adjustable plate. It may consist of either a sine plate or scale graduated in degrees to permit accurate adjustment. It is used for setting up angular work on a jig borer, milling machine, shaper, drill press or grinder.

Question 7

What is a Solid Angle Plate?

Accepted Answer

A Solid Angle Plate (PLATE,ANGLE,SOLID) is a machined fixture used for precision inspection and measurement. It usually forms a 90 degree angle (1.5705 radians) and the sides are often square to the faces. Excludes BRACKET, ANGLE.

Question 8

What is a Sine Plate?

Accepted Answer

A Sine Plate (PLATE,SINE) is a precision fixture consisting of a sine plate hinged to a base plate, the opposite end having one or more sine plugs of identical diameters, accurately spaced from center of hinge to center of sine plugs. It is used for machining, layout, and checking the angles on work in relation to the base surface.

Question 9

What is a Master Precision Level?

Accepted Answer

A Master Precision Level (LEVEL,PRECISION,MASTER) is a precisely calibrated instrument used as a master reference standard to establish an absolute horizontal plane. The metal base is seasoned and heat treated or otherwise specially treated to insure maximum stability, and is accurately machined and scraped to the true plane on the contact surface. The top plate is of nonconductive heat insulating material. It has a very sensitive vial graduated to indicate a variation of 0.0005 inch (0.0127 mm) per foot (0.3048 m) in a horizontal plane. It may have a cross level vial to assist in setting the true horizontal by showing position laterally.

Question 10

What is a Plain Cylindrical Plug Gage?

Accepted Answer

A Plain Cylindrical Plug Gage (GAGE,PLUG,PLAIN CYLINDRICAL) is a gage used for the dimensional control of the diameter of a specified hole. It consists of a gaging member or members and handle.

Question 11

What is a Plain Cylindrical Plug Gaging Member?

Accepted Answer

A Plain Cylindrical Plug Gaging Member (GAGING MEMBER,PLUG,PLAIN CYLINDRICAL) is an accurately finished element of a gage which is used for the dimensional control of the diameter of a specified hole.

Question 12

What is a Plain Ring Gage?

Accepted Answer

A Plain Ring Gage (GAGE,RING,PLAIN) is a gage used for the dimensional control of a specified external diameter, such as a shaft.

Question 13

What is a Plain Adjustable Snap Gage?

Accepted Answer

A Plain Adjustable Snap Gage (GAGE,SNAP,PLAIN ADJUSTABLE) is a gage used for the control of specified external dimensions. It consists of a frame and gaging members such as buttons, pins, blades and anvil. The gaging members may be set and locked to specified maximum and minimum limits within the given size range of the gage.

Question 14

What is a Thread Plug Gage?

Accepted Answer

A Thread Plug Gage (GAGE,PLUG,THREAD) is a gage used for the dimensional control of a specified internal thread. It consists of a gaging member or members and handle.

Question 15

What is a Thread Plug Gaging Member?

Accepted Answer

A Thread Plug Gaging Member (GAGING MEMBER,PLUG,THREAD) is an accurately finished element of a gage which is used for the dimensional control of a specified internal thread.

Question 16

What is a Thread Ring Gage?

Accepted Answer

A Thread Ring Gage (GAGE,RING,THREAD) is a gage used for the dimensional control of a specified external thread.

Question 17

What is a Thread Roll Snap Gage?

Accepted Answer

A Thread Roll Snap Gage (GAGE,SNAP,THREAD ROLL) is a gage used for the dimensional control of a specified external thread. It consists of a C-type frame and gaging members (rolls). The gaging members may be set and locked t0 specified maximum and/or minimum limits within the given size range of the gage.

Question 18

What is a Surface Plate?

Accepted Answer

A Surface Plate (PLATE,SURFACE) is a rectangular or square precision tool having a flat working surface(s) of specific flatness. It is used as a datum plane in connection with various layout, inspection, and calibration operations. It may also be used as a lapping plate, but is not grooved. See also BLOCK, LAPPING; PLATE, DUPLEX, SURFACE AND LAPPING; and PLATE, LAPPING.

Question 19

What is a Measuring Anvil?

Accepted Answer

A Measuring Anvil (ANVIL,MEASURING) is a cylindrical item, flatted on one side, used for checking the diameter, or testing roundness of measuring wires or pins. It has hardened and ground surfaces, and may be plain, or have 60 degree "V" shaped peripheral grooves.

Question 20

What is a Crimping Tool Gage?

Accepted Answer

A Crimping Tool Gage (GAGE,CRIMPING TOOL) is a gage designed for checking the setting of the indentors while the crimping tool is in the fully closed position.

Question 21

What is a Master Setting Disk Gage?

Accepted Answer

A Master Setting Disk Gage (GAGE,DISK,MASTER SETTING) is a gage disk used for setting snap gages, hole gages, comparators, and other type gages to required nominal inside dimensions.

Question 22

What is a Master Setting Ring Gage?

Accepted Answer

A Master Setting Ring Gage (GAGE,RING,MASTER SETTING) is a gage ring used for setting snap gages, hole gages, comparators, and other type gages to required nominal outside dimensions.

Question 23

What is an Air Comparator Gage?

Accepted Answer

An Air Comparator Gage (GAGE,COMPARATOR,AIR) is a gage designed to compare dimensional characteristics by indicating a difference in air flow. The gage is connected to an external air supply, the pressure is regulated and released between a gaging member and the item being checked. A variation in size, or a difference in size from a master, will be indicated by a difference in air flow. It consists of a GAGING MEMBER, COMPARATOR, AIR PLUG, an indicator, and may include a pressure regulator. Excludes GAGE, AIR FLOW, METALIZING; GAGE, SMALL HOLE; and GAGE SET, SMALL HOLE.

Question 24

What is an Air Plug Comparator Gaging Member?

Accepted Answer

An Air Plug Comparator Gaging Member (GAGING MEMBER,COMPARATOR,AIR PLUG) is an accurately finished element of a GAGE, COMPARATOR, AIR used for checking the dimensional characteristics of a specified hole.

Question 25

What is a Plug Countersink Gage?

Accepted Answer

A Plug Countersink Gage (GAGE,PLUG COUNTERSINK) is a gage used to compare the depth and/or diameter of the countersink on a hole to a known size by insertion of the gage in the hole.

Question 26

What is an Electronic Comparator Gage?

Accepted Answer

An Electronic Comparator Gage (GAGE,COMPARATOR,ELECTRONIC) is a gage used to obtain precise measurements or variances between objects electronically. It may include a power supply, computer, measuring amplifier, or probes. The output may be in analog, digital, opto-electronic, or printed form. See also ANALYZER, SURFACE FINISH, CONTACT.

Question 27

What is a Positioning Table?

Accepted Answer

A Positioning Table (TABLE,POSITIONING) is an item designed to accurately position another item for inspection, testing, maintenance or machining. The item is capable of linear and/or rotational movement but is not furnished with a work-holding device such as a chuck or vise. It may be manually operated or motor driven. Excludes POSITIONER, WELDING.

Question 28

What is a Profile Gage?

Accepted Answer

A Profile Gage (GAGE,PROFILE) is a gage used to check or inspect contour, radius, chamfer, depth, thickness and/or height by inclusive fit of a work piece.

Question 29

What is an Electronic Thickness Gage?

Accepted Answer

An Electronic Thickness Gage (GAGE,THICKNESS,ELECTRONIC) is a gage designed for measuring the wall thickness, for example of pipes and tubes and parts affected by corrosion. It emits sound waves which are electronically controlled and recorded. The measuring result is obtained by electronic computation. The thickness gage comprises a TRANSDUCER, SUPERSONIC TEST and an indicator.

Question 30

What is a Coating Thickness Gage?

Accepted Answer

A Coating Thickness Gage (GAGE,COATING THICKNESS) is an item designed for nondestructive measuring of the thickness of metallic or nonmetallic coatings on metallic or nonmetallic base materials. Measuring is effected in accordance with the adhesive force process, the magnetic process or electronically.

Question 31

What is a Track Wear Gage?

Accepted Answer

A Track Wear Gage (GAGE,TRACK WEAR) is a template-like item used to determine the degree of wear on tracks, particularly on track connectors, track center guides, track idlers and track pads.

Question 32

What is a Plain Cylindrical Plug Gage Set?

Accepted Answer

A Plain Cylindrical Plug Gage Set (GAGE SET,PLUG,PLAIN CYLINDRICAL) is a combination of different sizes of GAGE (1), PLUG, PLAIN CYLINDRICAL.

Question 33

What is a Headspace Gage?

Accepted Answer

A Headspace Gage (GAGE,HEADSPACE) is a gage used to determine the acceptability of headspace of a firearm.

Question 34

What is a Firing Pin Protrusion Gage?

Accepted Answer

A Firing Pin Protrusion Gage (GAGE,FIRING PIN PROTRUSION) is a precision machined metal device used to determine if a firing pin is protruding a required distance from the bolt face of a weapon. The gage may be of various configurations.

Question 35

What is a Plain Cylindrical Flush Pin Gage?

Accepted Answer

A Plain Cylindrical Flush Pin Gage (GAGE,FLUSH PIN,PLAIN CYLINDRICAL) is a gage used for the dimensional control of the specified depth of a hole, groove or slot, or height of a boss or protrusion. It consists of a moveable cylindrical gaging pin, suitably retained within a body.

Question 36

What is a Plotting Board Data Gage?

Accepted Answer

A Plotting Board Data Gage (GAGE,PLOTTING BOARD DATA) is an item of flat and transparent design containing several etched circles, the diameters of which represent allowable tolerances of the gage when placed over specific data (test dots) on a plotting board.

Question 37

What is a Taper Cylindrical Plug Gage?

Accepted Answer

A Taper Cylindrical Plug Gage (GAGE,PLUG,TAPER CYLINDRICAL) is a gage used for the dimensional control of the taper of a specified hole. It consists of a gaging member or members and handle. For gages designed for dimensional control of the minor diameter of a taper thread, see GAGE,PLUG,TAPER PIPE THREAD MINOR DIAMETER.

Question 38

What is a Taper Ring Gage?

Accepted Answer

A Taper Ring Gage (GAGE,RING,TAPER) is a gage used for the dimensional control of the taper of a specified external cylindrical component. For gages designed for dimensional control of the major diameter of a taper thread, see GAGE,RING,TAPER PIPE THREAD MAJOR DIAMETER.

Question 39

What is a Fixed Snap Gage?

Accepted Answer

A Fixed Snap Gage (GAGE,SNAP,FIXED) is a gage consisting of a frame and jaws into which the engagements are formed to one or more specific sizes. The engagements may be in the sides and/or ends of the frame. It is used for the control of specified external dimensions. Excludes GAGE,SNAP,PLAIN,ADJUSTABLE.

Question 40

What is an Electrical Connector Contact Gage?

Accepted Answer

An Electrical Connector Contact Gage (GAGE,CONTACT,ELECTRICAL CONNECTOR) is a gage designed to measure or compare the height, depth, and/or positioning of electrical connector contact(s).

Question 41

What is a Master Setting Inspection Gage?

Accepted Answer

A Master Setting Inspection Gage (GAGE,INSPECTION,MASTER SETTING) is a reference used to provide direct measurement to inspect and calibrate gages and fixtures. May be used to set turbine engine inspection gages.

Inspection Gages and Precision Layout Tools - United States (US)

Federal Supply Class (FSC): 5220

NATO Supply Classification Class (NSC): 5220

Federal Supply Group (FSG): 52 Measuring Tools

NATO Supply Classification Group (NSG): 52 Measuring Tools

Items Managed by United States (US) - NCB is 00 to 09

Page 6 of 173

NSN Format for Inspection Gages and Precision Layout Tools
Codified by United States

Frequently Asked Questions(FAQ) for Federal Supply Class 5220

Supply Items Included in Federal Supply Class 5220

Stock Items From Supply Class 5220 Page 6 of 173