PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30321Meter,time Totalizing

Cramer Co Division of Chestnut Group Inc · NSN 6645-01-408-3029 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-01-408-3029 — this item is cataloged by the U.S. Government under National Stock Number 6645-01-408-3029. Primary manufacturer part number: 30321.
Features
  • Meter,time Totalizing — FSC 6645
  • Voltage Rating: 115.0 VOLTS NOMINAL
  • Operating Frequency: 60.0 HERTZ NOMINAL
  • 2 verified cross-references
  • Primary manufacturer: Cramer Co Division of Chestnut Group Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Meter,time Totalizing, cataloged under National Stock Number 6645-01-408-3029, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Cramer Co Division of Chestnut Group Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-01-408-3029
Primary Part Number30321
Item NameMeter,time Totalizing
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerCramer Co Division of Chestnut Group Inc
StatusACTIVE
Voltage Rating115.0 VOLTS NOMINAL
Operating Frequency60.0 HERTZ NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-056-8697 INTERCHANGEABLE
Terminal Board
3110-00-156-8261177003-60 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5840-00-640-705724789 INTERCHANGEABLE
Retainer,plate
Johnson Controls, Inc Div Building Efficiency
1650-00-946-875530321 INTERCHANGEABLE
Guide,damper
The Boeing Company Div Defense
5950-01-012-562862400-080 INTERCHANGEABLE
Transformer,power
Dynalec Corporation
5331-01-313-848830321 INTERCHANGEABLE
O-Ring
W.w. Grainger, Inc. Div Government Sales Division
5985-01-382-638530321 INTERCHANGEABLE
Coupler,directional
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
5340-01-616-3257 INTERCHANGEABLE
Plate,mounting
6910-01-668-2607FIN-0016-03 INTERCHANGEABLE
Manikin,trauma Training
Revmedx, Inc. Dba Revmedx Inc
Cross-Reference Index
Part NumberManufacturer
30321 Cramer Co Division of Chestnut Group Inc (USA)
620CS100AM0008A Cramer Co Division of Chestnut Group Inc (USA)
Related Parts
5940-00-056-8697INTERCHANGEABLE
TERMINAL BOARD
3110-00-156-8261INTERCHANGEABLE
BEARING,BALL,ANNULAR
177003-60
5840-00-640-7057INTERCHANGEABLE
RETAINER,PLATE
24789
1650-00-946-8755INTERCHANGEABLE
GUIDE,DAMPER
30321
5950-01-012-5628INTERCHANGEABLE
TRANSFORMER,POWER
62400-080
5331-01-313-8488INTERCHANGEABLE
O-RING
30321
5985-01-382-6385INTERCHANGEABLE
COUPLER,DIRECTIONAL
30321
5340-01-616-3257INTERCHANGEABLE
PLATE,MOUNTING
6910-01-668-2607INTERCHANGEABLE
MANIKIN,TRAUMA TRAINING
FIN-0016-03

Frequently Asked Questions

What is NSN 6645-01-408-3029?

NSN 6645-01-408-3029 is a Meter,time Totalizing, manufactured by Cramer Co Division of Chestnut Group Inc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-01-408-3029?

NSN 6645-01-408-3029 has 2 cross-referenced part numbers: 30321 (Cramer Co Division of Chestnut Group Inc), 620CS100AM0008A (Cramer Co Division of Chestnut Group Inc).

What NSN replaces 6645-01-408-3029?

There are 9 known substitutes for 6645-01-408-3029: 5940-00-056-8697, 3110-00-156-8261, 5840-00-640-7057 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30321?

Key specifications for 30321: Voltage Rating: 115.0 VOLTS NOMINAL; Operating Frequency: 60.0 HERTZ NOMINAL; End Item Identification: COMMUNICATION SYSYEMS AN/WSC-3;RT-1107(V)9 D CAGE:00724. 3 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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