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NSN 6645-01-680-9971Government record, cited

Timer, Sequential6645-01-680-9971

NSN 6645-01-680-9971 · NIIN 016809971 · Part number RZ7-FSA3UU23
Sprecher and Schuh Inc S and S Control Div · FSC 6645 — Time Measuring Instruments · FSG 66 — Instruments and Laboratory Equipment · CAGE 2X175
Government record, cited
NSN 6645-01-680-9971 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-680-9971. Manufacturer of record part number: RZ7-FSA3UU23.
Also searched as  6645-01-680-9971 · 6645016809971 · NIIN 016809971 · 01-680-9971 · FSC 6645 Time Measuring Instruments · CAGE 2X175 · RZ7-FSA3UU23
Nearby stock numbers  ·
Features
  • Timer,sequential — FSC 6645
  • Frequency in Hertz: 50.0 OR 60.0
  • Control Type: ELECTRIC AND RELAY
  • Precious Material: SILVER
  • Reset Type: ELECTRIC
  • Timer Type: ELECTRICAL
  • Operating DC Voltage in Volts: 24.0 OR 48.0
  • Operation Method: ELECTRONIC OPERATED
Identification
  • NSN: 6645-01-680-9971
  • NIIN: 016809971
  • FSC: 6645 — Time Measuring Instruments
  • FSG: 66 — Instruments and Laboratory Equipment
  • Primary part number: RZ7-FSA3UU23
  • Manufacturer: Sprecher and Schuh Inc S and S Control Div
General Description

The Timer,sequential, cataloged under National Stock Number 6645-01-680-9971, is classified within Federal Supply Class 6645 (Time Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Sprecher and Schuh Inc S and S Control Div. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-680-9971
Primary Part NumberRZ7-FSA3UU23
Item NameTimer,sequential
FSC / FSG6645 / 66 — Time Measuring Instruments
ManufacturerSprecher and Schuh Inc S and S Control Div
StatusACTIVE
Frequency in Hertz50.0 OR 60.0
Control TypeELECTRIC AND RELAY
Precious MaterialSILVER
Reset TypeELECTRIC
Timer TypeELECTRICAL
Operating DC Voltage in Volts24.0 OR 48.0
Operation MethodELECTRONIC OPERATED
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
RZ7-FSA3UU23 PRIMARY Sprecher and Schuh Inc S and S Control Div (USA)
No interchangeability data on file.
Other items in FSC 6645 — Time Measuring Instruments
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
6645-00-001-1256
6645-00-001-1256 · Item name not on file
6645-00-001-4498
6645-00-001-4498 · Item name not on file
6645-00-001-4584
6645-00-001-4584 · Item name not on file
6645-00-001-9400
METER,TIME TOTALIZING
6645-00-003-0327
6645-00-003-0327 · Item name not on file
6645-00-003-0328
6645-00-003-0328 · Item name not on file
6645-00-003-0337
6645-00-003-0337 · Item name not on file
6645-00-003-0338
METER,TIME TOTALIZING

Frequently Asked Questions

What is NSN 6645-01-680-9971?

NSN 6645-01-680-9971 is a Timer,sequential, manufactured by Sprecher and Schuh Inc S and S Control Div, classified under FSC 6645, Time Measuring Instruments. Status: active.

What part numbers are listed for NSN 6645-01-680-9971?

NSN 6645-01-680-9971 has 1 manufacturer part number on file: RZ7-FSA3UU23 (Sprecher and Schuh Inc S and S Control Div).

What are the specifications of RZ7-FSA3UU23?

Key specifications for RZ7-FSA3UU23: Overall Height: 78.8 MILLIMETERS NOMINAL MM; Frequency in Hertz: 50.0 OR 60.0; Control Type: ELECTRIC AND RELAY; Precious Material: SILVER. 7 specifications are documented in the U.S. Government catalog.

Is NSN 6645-01-680-9971 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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