PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

778000Timer,sequential

Unimac Co Inc · NSN 6645-01-393-4037 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-393-4037 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-393-4037. Primary manufacturer part number: 778000.
Features
  • Timer,sequential — FSC 6645
  • Automatic Electric Circuit Control Switch: NOT INCLUDED
  • Voltage in Volts: 110.0
  • Frequency in Hertz: 50.0 OR 60.0
  • Current Type: AC
  • Timer Type: ELECTRICAL
  • Interval Expiration Signalling Device: NOT INCLUDED
  • 1 verified cross-reference
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Timer,sequential, cataloged under National Stock Number 6645-01-393-4037, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Unimac Co Inc. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-393-4037
Primary Part Number778000
Item NameTimer,sequential
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerUnimac Co Inc
StatusACTIVE
Automatic Electric Circuit Control SwitchNOT INCLUDED
Voltage in Volts110.0
Frequency in Hertz50.0 OR 60.0
Current TypeAC
Timer TypeELECTRICAL
Interval Expiration Signalling DeviceNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-01-341-9611H2000 INTERCHANGEABLE
Ring,wiper
Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)
4610-01-581-1989778000 INTERCHANGEABLE
Filter Element,water Purificatio
General Ecology, Inc. Dba General Ecology
Cross-Reference Index
Part NumberManufacturer
778000 Unimac Co Inc (USA)
Related Parts
5330-01-341-9611INTERCHANGEABLE
RING,WIPER
H2000
4610-01-581-1989INTERCHANGEABLE
FILTER ELEMENT,WATER PURIFICATIO
778000

Frequently Asked Questions

What is NSN 6645-01-393-4037?

NSN 6645-01-393-4037 is a Timer,sequential, manufactured by Unimac Co Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-393-4037?

NSN 6645-01-393-4037 has 1 cross-referenced part number: 778000 (Unimac Co Inc).

What NSN replaces 6645-01-393-4037?

There are 2 known substitutes for 6645-01-393-4037: 5330-01-341-9611, 4610-01-581-1989. Verify interchangeability with system specifications before substitution.

What are the specifications of 778000?

Key specifications for 778000: Automatic Electric Circuit Control Switch: NOT INCLUDED; Voltage in Volts: 110.0; Frequency in Hertz: 50.0 OR 60.0; Current Type: AC. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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