Time Measuring Instruments - United States (US)

Federal Supply Class (FSC): 6645

NATO Supply Classification Class (NSC): 6645

Federal Supply Group (FSG): 66 Instruments and Laboratory Equipment

NATO Supply Classification Group (NSG): 66 Instruments and Laboratory Equipment

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

Page 4 of 33

NSN Format for Time Measuring Instruments
Codified by United States

664501XXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN

NATO Supply Class 6645 refers to Time Measuring Instruments, which are categorized under NATO Supply Group 66 for Instruments and Laboratory Equipment.

Time Measuring Instruments in this class are used for measuring and indicating time intervals, durations, or specific points in time. These instruments are commonly used in various industries, including scientific research, manufacturing, aviation, and telecommunications.

Some examples of Time Measuring Instruments in this class include:

1. Clocks: These are devices that display the current time and are commonly used for general timekeeping purposes.

2. Timers: These instruments are used to measure and indicate specific time intervals or durations. They are often used in laboratory experiments, cooking, and sports events.

3. Stopwatches: These handheld devices are used to measure and record the time elapsed between the start and stop of an event. They are commonly used in sports, athletics, and scientific experiments.

4. Chronographs: These instruments combine the functions of a watch and a stopwatch. They can measure and record both the current time and elapsed time.

5. Time Recorders: These devices are used to record the time of events or actions, typically in a workplace setting. They are often used for attendance tracking and timekeeping purposes.

It is important to note that NATO Supply Class 6645 includes a wide range of time measuring instruments, each with its own specific features and applications. When selecting a time measuring instrument, it is essential to consider the intended use, accuracy requirements, and any specific features or functionalities needed for the task at hand.

FSC 6645 Time Measuring Instruments - United States (US)
FSC 6645 Time Measuring Instruments - United States (US)

Includes Clocks; Job Recording Devices; Time Recorders; Time Stamps, Watch and Clock Movements; Watches.

Note-Infrared assemblies (including sub-assemblies and components) designed specifically for use as or with instruments and laboratory equipment are included in the classes of this group. Also included are computers (including computer assemblies, computer systems and components) designed specifically for use with instruments and laboratory equipment.

Frequently Asked Questions(FAQ) for Federal Supply Class 6645 Frequently Asked Questions(FAQ) for Federal Supply Class 6645

What is Federal Supply Class 6645?
FSC 6645 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 6645) in the USA for supply items codified in the category of Time Measuring Instruments.
What is NATO Supply Classification Class 6645?
NSC 6645 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 6645 in the USA) for supply items codified in the category of Time Measuring Instruments.
Which Federal Supply Group is FSC 6645 in?
FSC 6645 is in Federal Supply Group (FSG) 66 which contains Instruments and Laboratory Equipment.
Which NATO Supply Classification Group is NSC 6645 in?
NSC 6645 is in NATO Supply Classification Group (NSG) 66 which contains Instruments and Laboratory Equipment.

Supply Items Included in Federal Supply Class 6645 Supply Items Included in Federal Supply Class 6645

What is a Time Recorder? 23 Items
A Time Recorder (RECORDER,TIME) is a mechanically or electrically operated clock which is primarily designed to imprint time data on cards, documents, and the like. It may be equipped to imprint additional data not related to time. It may be actuated manually or automatically by card insertion. It incorporates provisions for automatic, semiautomatic, or manual precise positioning of lined, and/or columned "in and out" time cards, "elapsed time" job cards, and the like. For similar items not having provisions for precise positioning, see STAMP, TIME. See also CLOCK, RECORDING, WATCHMAN'S. For instruments designed to measure the total operating time of a circuit, machine or system, see METER, TIME TOTALIZING.
What is a Time Stamp? 39 Items
A Time Stamp (STAMP,TIME) is a mechanically or electrically operated clock which is primarily designed to imprint time data on letters, documents, and the like. It may be equipped to imprint additional data not related to time. It may be actuated manually or automatically by insertion of the item to be stamped. It does not incorporate provisions for precise positioning of the stamp. For similar items which incorporate provisions for precise positioning of the stamp, use RECORDER, TIME.
What is a Stopwatch? 91 Items
A Stopwatch is a timepiece designed exclusively to indicate a time interval, with reference to measurement. It may be started and stopped at any given instant, and controlled by a start and stop mechanism. Excludes Timer as used to control, regulate, or register a fixed time interval which has been previously determined.
What is a Direct Reading Clock? 35 Items
A Direct Reading Clock (CLOCK,DIRECT READING) is a clock having a mechanism which measures and indicates the progress of time in direct numeric sequence on a series of rotating drums. For instruments designed to measure the total operating time of a circuit, machine or system, see METER, TIME TOTALIZING.
What is an Interval Timer? 1053 Items
An Interval Timer (TIMER,INTERVAL) is an instrument for signalling the expiration of a predetermined time. It may also have an automatic switch for control of electrical circuits See also TIMER, STOP.
What is a Program Clock? 18 Items
A Program Clock (CLOCK,PROGRAM) is an electrically operated clock having a disk, drum, or tape mechanism for presetting scheduled operation of bell(s) or other signals connected to one or more electrical circuits. It may not have a mechanism for controlling or regulating secondary clocks.
What is a Master Regulating Clock? 52 Items
A Master Regulating Clock (CLOCK,MASTER REGULATING) is a precision clock having a mechanism for controlling and regulating secondary clocks. It may not have any device for actuating bells or other signals.
What is a Stop Timer? 177 Items
A Stop Timer (TIMER,STOP) is a precision instrument for measuring and indicating elapsed time periods. Not intended to be carried on the person. See also TIMER, INTERVAL.
What is an Alarm Clock? 13 Items
An Alarm Clock (CLOCK,ALARM) is a clock having an adjustable alarm device for signalling at a preset time.
What is a Mechanical Marine Clock? 23 Items
A Mechanical Marine Clock (CLOCK,MARINE,MECHANICAL) is a clock having a spring-wound movement, contained in a moisture-proof plastic or metal case designed for mounting on a vertical surface.
What is a Wall Clock? 220 Items
A Wall Clock (CLOCK,WALL) is a clock specifically designed for mounting on or in a wall. It may have chimes and/or strike features. It shall not have any mechanism for controlling and regulating secondary clocks or alarm signalling devices.
What is a Time Totalizing Meter? 1968 Items
A Time Totalizing Meter (METER,TIME TOTALIZING) is an instrument that automatically measured, and cumulatively registers the total operating or idle time of any circuit, machine or system, to which it is connected. See METER, FREQUENCY AND TIME TOTALIZING, ELECTRICAL.
Watch,Wrist 117 Items
What is a Chronometer? 35 Items
A Chronometer is an instrument for precisely determining time, manufactured to close tolerances to assure the time-keeping qualities of dependability and consistency of rate. These qualities are accurately ascertained by comparison with more exact devices or by astronomical methods so that the accumulated error may be taken into account when determining time. Its usual uses are to indicate time for navigational purposes, and to serve as a reference for less accurate timepieces. It is usually provided with a winding indicator dial and is usually mounted in gimbals to maintain the instrument in a level position. May consist of a spring driven or other type of movement which is capable of exacting performance without regulation throughout the normal range of room temperatures. Not designed for carrying on the person.
What is a Mechanical Timing Movement? 26 Items
A Mechanical Timing Movement (TIMING MOVEMENT,MECHANICAL) is a precision instrument designed to provide a constant velocity rotational movement. It may or may not have a self-contained power source. It is adapted to actuate mechanical time fuze(s), switch(es) and/or mechanical lever(s) and the like. It does not have a dial or case. Excludes TIMER, INTERVAL and TIMER, STOP.
What is a Dashpot? 37 Items
A Dashpot is a device usually consisting of a piston and cylinder with means of securing one or both ends. It is used for cushioning or clamping a movement to avoid shock, absorb vibration,or for time delay, by the restricted passage of fluid (gas or liquid) through an orifice or around the piston.
What is a Panel Clock? 155 Items
A Panel Clock (CLOCK,PANEL) is a clock specifically designed for mounting on or in a panel. It may have a strike mechanism. Excluded are mechanisms for controlling and regulating secondary clocks and alarm signalling devices.
What is a Timer Housing? 12 Items
A Timer Housing (HOUSING,TIMER) is the outer component of a timer designed to inclose, support and/or protect the timer mechanism.
What is a Wrist Instrument Strap? 34 Items
A Wrist Instrument Strap (STRAP,WRIST INSTRUMENT) is an item consisting of one or two narrow strips of material cut to a definite length, having one end processed with a fastening device. The other end is processed to mate with the fastening end. It is intended for the atachment of watches, compasses and depth gauges, The item may be resistant to magnetic forces.
What is a Watchman's Clock Recording Key? 42 Items
A Watchman's Clock Recording Key (KEY,RECORDING,WATCHMAN'S CLOCK) is an item that registers embossed impressions on a type fibre/paper time dial. Impressions are made directly from raised numerals or letters on the item or may require the use of ribbons, carbon, or inking devices for legible impressions.
What is a Time Code Reader? 27 Items
A Time Code Reader (READER,TIME CODE) is a device capable of processing noise-free signals from generators, range time code distribution systems and instrumentation tape reproduces. It is designed to be rack mounted and may include mounting hardware.
What is a Sequential Timer? 785 Items
A Sequential Timer (TIMER,SEQUENTIAL) is an item which actuates included electrical contacts and/or switches in an orderly succession, and at a predetermined interval(s) for the purpose of controlling the operation of another electrical device(s). May have provision for manually establishing an operational sequence or cycle. See also RELAY, MOTOR DRIVEN; TIMER, INTERVAL; KEYER (as modified); CHRONOMETER, MAKE-BREAK CIRCUIT and INTERVALOMETER (as modified).
What is a Time Code Generator? 238 Items
A Time Code Generator (GENERATOR,TIME CODE) is a device specifically designed for use as a central timing device for the purpose of providing time-correlated signals for magnetic tape recorders, oscillographs, strip chart recorders, cameras, digital printers, remote digital displays or direct computer entry. The device may generate various time code formats, contain special features for time comparisons against broadcast time signals and provide visual display in BCD or decimal format.

Stock Items From Supply Class 6645 Stock Items From Supply Class 6645 Page 4 of 33

011016495
575-001001
RNCC: 3 | RNVC: 2
011007440
FLR3V1-24HR-115-60
RNCC: 3 | RNVC: 2
010994836
420-LC
RNCC: 3 | RNVC: 2
010993111
H19218A
RNCC: 3 | RNVC: 2
010986667
1104324B
RNCC: 3 | RNVC: 2
8-1104
RNCC: 5 | RNVC: 9
010985077
61-3357
RNCC: 3 | RNVC: 2
010975831
48366-1000-110
RNCC: 3 | RNVC: 2
8366-12
RNCC: 5 | RNVC: 2
48366-1000-110
RNCC: 5 | RNVC: 9
8366-12
RNCC: 5 | RNVC: 9
010975694
48392-1000-105
RNCC: 3 | RNVC: 2
8392-8
RNCC: 5 | RNVC: 2
48392-1000-105
RNCC: 5 | RNVC: 9
8392-8
RNCC: 5 | RNVC: 9
010959681
16B8SY
RNCC: 3 | RNVC: 2
010952472
F19222
RNCC: 3 | RNVC: 2
940260-1
RNCC: 3 | RNVC: 2
010925900
7151826-17
RNCC: 3 | RNVC: 2
MK-2035(V)1/
RNCC: 5 | RNVC: 2
010925896
7151826-01
RNCC: 3 | RNVC: 2
MK-2032(V)
RNCC: 5 | RNVC: 2
010902556
8392-1
RNCC: 3 | RNVC: 2
48392-1001-101
RNCC: 5 | RNVC: 2
010896456
HP518A6
RNCC: 3 | RNVC: 9
010896458
HM4-12-A6
RNCC: 3 | RNVC: 9
010896457
HM7-12-A6
RNCC: 3 | RNVC: 9
010896459
HR-002
RNCC: 3 | RNVC: 9
010876171
620NT 15832001-10 4VDC 1000HRS
RNCC: 3 | RNVC: 2
620-NT5VDC1000
RNCC: 5 | RNVC: 9
SM-B-765483
RNCC: 7 | RNVC: 2
010872968
95C8V3W
RNCC: 3 | RNVC: 2
010867668
S558-22
RNCC: 3 | RNVC: 2
46619-61
RNCC: 5 | RNVC: 2
010867650
287126
RNCC: 3 | RNVC: 2
287126
RNCC: 5 | RNVC: 9
010864740
BTCP001A-001
RNCC: 3 | RNVC: 2
BTCP001A-001
RNCC: 5 | RNVC: 9
010852152
267-400002-001
RNCC: 3 | RNVC: 2
K42203-P4
RNCC: 5 | RNVC: 9
010847453
401-4695020 ITEM 41
RNCC: 3 | RNVC: 2
401-5216310 ITEM 41
RNCC: 5 | RNVC: 2
2756A/430-0011-001
RNCC: 5 | RNVC: 2
010836334
S-1STD-1-2-5
RNCC: 3 | RNVC: 2
364-5
RNCC: 5 | RNVC: 9
010828569
1795-22-2
RNCC: 3 | RNVC: 2
010799216
UPT100-10-10
RNCC: 3 | RNVC: 2
010796437
835-0100
RNCC: 3 | RNVC: 9
010796339
2910000-004
RNCC: 3 | RNVC: 2
010796328
K19502-C8
RNCC: 3 | RNVC: 2
010789585
11-6101-21251
RNCC: 3 | RNVC: 2
010779350
62NG1
RNCC: 3 | RNVC: 9
010774934
417
RNCC: 3 | RNVC: 2
010764653
604-854
RNCC: 3 | RNVC: 2
010760552
8230M
RNCC: 3 | RNVC: 2
010758790
73120400
RNCC: 3 | RNVC: 2
010756498
1264C62G17
RNCC: 3 | RNVC: 9
010747710
520-3-68
RNCC: 3 | RNVC: 2
010728367
8526-B14-L12-L14A-E15-M13
RNCC: 3 | RNVC: 9
8520-B14-L12-L14-E15-M13
RNCC: 5 | RNVC: 9
010726077
6700S1OPTA3D2
RNCC: 3 | RNVC: 9
010720437
163200-01
RNCC: 3 | RNVC: 2
010708271
0N254540-1
RNCC: 3 | RNVC: 2
TD-1285/G
RNCC: 5 | RNVC: 2
010701210
E117-72701
RNCC: 3 | RNVC: 9
E117-27010
RNCC: 5 | RNVC: 9
010698608
3147939
RNCC: 3 | RNVC: 2
563400
RNCC: 5 | RNVC: 2
T96-0059
RNCC: 5 | RNVC: 9
010693286
SWC-2-2
RNCC: 3 | RNVC: 2
RMT-12-AR2
RNCC: 5 | RNVC: 9
010690071
777-6885-001
RNCC: 3 | RNVC: 2
010685019
636SL100AA0008A
RNCC: 3 | RNVC: 2
ER 30R-ER3020
RNCC: 3 | RNVC: 9
2838869
RNCC: 5 | RNVC: 9
2838869
RNCC: 5 | RNVC: 9
010666665
HAGU
RNCC: 3 | RNVC: 2
010665840
44-5703
RNCC: 3 | RNVC: 2
44-3473
RNCC: 5 | RNVC: 9
010663176
508563A
RNCC: 3 | RNVC: 9
010635631
456-0091-001
RNCC: 3 | RNVC: 1
010633371
22000-6209
RNCC: 3 | RNVC: 2
010630141
W220L
RNCC: 3 | RNVC: 2
W200L
RNCC: 5 | RNVC: 9
010615516
L125-T108-2
RNCC: 3 | RNVC: 2
010605916
1
RNCC: 3 | RNVC: 2
010592581
DE 7-1
RNCC: 3 | RNVC: 2
010592582
DE 7-2
RNCC: 3 | RNVC: 2
010591861
T-212AM
RNCC: 3 | RNVC: 2
010586260
22858466
RNCC: 3 | RNVC: 2
010583072
10130-502-11
RNCC: 3 | RNVC: 2
010570596
C19708
RNCC: 3 | RNVC: 2
C19708
RNCC: 5 | RNVC: 9
8584091-1
RNCC: 5 | RNVC: 9
010569296
KCF14R4
RNCC: 3 | RNVC: 2
010563417
HA-2-GF
RNCC: 3 | RNVC: 2
010561445
9100-212
RNCC: 3 | RNVC: 2
406-0040-005
RNCC: 5 | RNVC: 2
010555465
7153
RNCC: 3 | RNVC: 2
7153
RNCC: 5 | RNVC: 9
010555427
HA2
RNCC: 3 | RNVC: 2
010555426
HA3GU
RNCC: 3 | RNVC: 2
010547101
250-2
RNCC: 3 | RNVC: 2
010544423
M-59
RNCC: 3 | RNVC: 9
010542306
639AS978
RNCC: 3 | RNVC: 2
010524069
HA-136
RNCC: 3 | RNVC: 2
010504048
4050
RNCC: 3 | RNVC: 9
010486844
V240TW
RNCC: 3 | RNVC: 9
010479724
HA13G
RNCC: 3 | RNVC: 2
010475780
111S26
RNCC: 3 | RNVC: 2
010474130
3299-5-3
RNCC: 3 | RNVC: 2
010471736
14302-021
RNCC: 3 | RNVC: 2
11087
RNCC: 5 | RNVC: 9
010464880
60-0016
RNCC: 3 | RNVC: 2
010462804
3003-48
RNCC: 3 | RNVC: 2
3003-48
RNCC: 5 | RNVC: 9
010461417
102-3
RNCC: 3 | RNVC: 2
12000-8
RNCC: 5 | RNVC: 2
010457108
ET110
RNCC: 3 | RNVC: 2
010439942
14-654-1
RNCC: 3 | RNVC: 2
14-653-5
RNCC: 5 | RNVC: 9
010435236
8245-0-115/60
RNCC: 3 | RNVC: 2
010430910
MMC76-015A-V5
RNCC: 3 | RNVC: 2
010430909
MMC76-015A-V4
RNCC: 3 | RNVC: 2
010424138
402
RNCC: 3 | RNVC: 2
402
RNCC: 5 | RNVC: 9
010408213
420
RNCC: 3 | RNVC: 2
010405233
400-220V50HZ
RNCC: 3 | RNVC: 2
010402295
400-110V50HZ
RNCC: 3 | RNVC: 2
010382042
CR121DA51
RNCC: 3 | RNVC: 2
010377725
300-220V50HZ
RNCC: 3 | RNVC: 2
010368303
2438932-1
RNCC: 3 | RNVC: 2
2438932-1
RNCC: 5 | RNVC: 9
010364947
8120-0500
RNCC: 3 | RNVC: 9
8120-0500
RNCC: 5 | RNVC: 9
010325266
CR121CA02
RNCC: 3 | RNVC: 9
680X83
RNCC: 5 | RNVC: 9
50-239104PBAA
RNCC: 5 | RNVC: 9
010323956
100-088
RNCC: 3 | RNVC: 2
010293058
135C9945G1L60
RNCC: 3 | RNVC: 2
010287870
OP12232
RNCC: 3 | RNVC: 2
010282051
MC6/A18/115V/60C
RNCC: 3 | RNVC: 2
010281630
100086
RNCC: 3 | RNVC: 2
D-6512-1
RNCC: 5 | RNVC: 2
BN4222-008
RNCC: 5 | RNVC: 9
010266659
3502
RNCC: 3 | RNVC: 9
010251002
7120
RNCC: 3 | RNVC: 2
010248183
150218-1
RNCC: 3 | RNVC: 2
010246447
511-60M-1-115-60
RNCC: 3 | RNVC: 9
511-1-60M-115-60
RNCC: 5 | RNVC: 9
010245295
305C008A10PX
RNCC: 3 | RNVC: 2
010242133
71701
RNCC: 3 | RNVC: 9
010241547
06175204
RNCC: 3 | RNVC: 9
673447-107
RNCC: 7 | RNVC: 2
010240409
DT-21X-0
RNCC: 3 | RNVC: 2
010240105
16B8A
RNCC: 3 | RNVC: 2
010238020
305C004A10XK
RNCC: 3 | RNVC: 9
305C004A10XK
RNCC: C | RNVC: 1
010236756
7122
RNCC: 3 | RNVC: 2
010235264
P24579-091
RNCC: 3 | RNVC: 9
24579
RNCC: 5 | RNVC: 9
24579
RNCC: C | RNVC: 1
P24579-091
RNCC: C | RNVC: 1
010232180
STPMHAF
RNCC: 3 | RNVC: 2
010226247
3541
RNCC: 3 | RNVC: 9
010181799
33
RNCC: 3 | RNVC: 9
010170860
209-PA-1001
RNCC: 3 | RNVC: 2
010167706
TM 3916
RNCC: 3 | RNVC: 9
010167697
651491A
RNCC: 3 | RNVC: 9
010149205
1282A
RNCC: 3 | RNVC: 2
010148765
8675-50
RNCC: 3 | RNVC: 2
010130505
MLLE75-22
RNCC: 3 | RNVC: 2
010120423
8350
RNCC: 3 | RNVC: 2
010120317
763115-1
RNCC: 3 | RNVC: 2
763115-1
RNCC: 5 | RNVC: 2
2600-136
RNCC: 5 | RNVC: 2
763115-1
RNCC: 5 | RNVC: 9
2600-136
RNCC: 5 | RNVC: 9
010116460
D19631
RNCC: 3 | RNVC: 2
3675016-001
RNCC: 5 | RNVC: 2
010110419
8140/8150
RNCC: 3 | RNVC: 9
8140/8150
RNCC: 5 | RNVC: 9
010108241
1201368
RNCC: 3 | RNVC: 2
010106701
AU6394
RNCC: 3 | RNVC: 2
010092602
440A1-8HR908
RNCC: 3 | RNVC: 2
440A1-8HR908
RNCC: 5 | RNVC: 9
010079192
R1-2
RNCC: 3 | RNVC: 2
010077623
644655
RNCC: 3 | RNVC: 2
010077622
644651
RNCC: 3 | RNVC: 2
Z48-80C0T
RNCC: 5 | RNVC: 2
010075295
2412
RNCC: 3 | RNVC: 9
2412
RNCC: 5 | RNVC: 9
010070677
8163
RNCC: 3 | RNVC: 2
010057882
2144163-1
RNCC: 1 | RNVC: 2
2286
RNCC: 3 | RNVC: 2
2144163-1
RNCC: 5 | RNVC: 9
010055610
4001414-02
RNCC: 3 | RNVC: 2
010030299
120LT10000H97RS
RNCC: 3 | RNVC: 2
009978642
HM607A601
RNCC: 3 | RNVC: 9
009977354
A12577
RNCC: 3 | RNVC: 2
602789-2
RNCC: 5 | RNVC: 2
009975986
MP11A613
RNCC: 3 | RNVC: 9
009975985
MP11A609
RNCC: 3 | RNVC: 9