PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

440ATimer,interval

Cramer Co Division of Chestnut Group Inc · NSN 6645-00-515-6147 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-515-6147 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-515-6147. Primary manufacturer part number: 440A.
Features
  • Timer,interval — FSC 6645
  • Furnished Items and Quantity: SWITCH MICRO
  • Hand Designation and Quantity: 1 MINUTE HAND
  • Dial Minimum Graduation Unit: 30.0 SECONDS
  • Hand Color: BLACK
  • Frequency in Hertz: 60.0
  • Mounting Method: WALL
  • Inscription Color: BLACK
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Timer,interval, cataloged under National Stock Number 6645-00-515-6147, 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 12 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-515-6147
Primary Part Number440A
Item NameTimer,interval
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerCramer Co Division of Chestnut Group Inc
StatusACTIVE
Furnished Items and QuantitySWITCH MICRO
Hand Designation and Quantity1 MINUTE HAND
Dial Minimum Graduation Unit30.0 SECONDS
Hand ColorBLACK
Frequency in Hertz60.0
Mounting MethodWALL
Inscription ColorBLACK
Dial Background ColorWHITE
Timer TypeELECTRICAL
Voltage in Volts115.0
Operation MethodSYNCHRONOUS MOTOR
Current TypeAC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-144-8971268374-5 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-00-194-2967 INTERCHANGEABLE
Jack,telephone
5930-00-221-89929095 INTERCHANGEABLE
Switch,push
Cole Hersee Company
6625-00-752-5311440A INTERCHANGEABLE
Detector,radio Frequency
Keysight Technologies Inc
6665-00-938-6806 INTERCHANGEABLE
Radiacmeter
Cross-Reference Index
Part NumberManufacturer
440A Cramer Co Division of Chestnut Group Inc (USA)
Related Parts
3110-00-144-8971INTERCHANGEABLE
BEARING,BALL,ANNULAR
268374-5
5935-00-194-2967INTERCHANGEABLE
JACK,TELEPHONE
5930-00-221-8992INTERCHANGEABLE
SWITCH,PUSH
9095
6625-00-752-5311INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY
440A
6665-00-938-6806INTERCHANGEABLE
RADIACMETER

Frequently Asked Questions

What is NSN 6645-00-515-6147?

NSN 6645-00-515-6147 is a Timer,interval, 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 6645-00-515-6147?

NSN 6645-00-515-6147 has 1 cross-referenced part number: 440A (Cramer Co Division of Chestnut Group Inc).

What NSN replaces 6645-00-515-6147?

There are 5 known substitutes for 6645-00-515-6147: 3110-00-144-8971, 5935-00-194-2967, 5930-00-221-8992 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 440A?

Key specifications for 440A: Overall Height: 4.250 INCHES NOMINAL IN; Overall Depth: 3.750 INCHES NOMINAL IN; Furnished Items and Quantity: SWITCH MICRO; Hand Designation and Quantity: 1 MINUTE HAND. 15 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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