PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8478Cap,barrel

The Chelsea Clock Llc · NSN 6645-00-348-2841 · FSC 6645 · No Item Name Available
Verified by PartsTable
NSN 6645-00-348-2841 — this item is cataloged by the U.S. Government under National Stock Number 6645-00-348-2841. Primary manufacturer part number: 8478.
Features
  • Cap,barrel — FSC 6645
  • General Characteristics Item Description: BRASS; 1-5/8 IN. DIA IN
  • 1 verified cross-reference
  • Primary manufacturer: The Chelsea Clock Llc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cap,barrel, cataloged under National Stock Number 6645-00-348-2841, is classified within Federal Supply Class 6645 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is The Chelsea Clock Llc. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6645-00-348-2841
Primary Part Number8478
Item NameCap,barrel
FSC / FSG6645 / 66 — No Item Name Available
ManufacturerThe Chelsea Clock Llc
StatusACTIVE
General Characteristics Item DescriptionBRASS; 1-5/8 IN. DIA IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
9540-00-145-573160-8684 INTERCHANGEABLE
Angle,structural
Transtar Metals Corp
9540-00-145-5732 INTERCHANGEABLE
Angle,structural
6145-00-244-8152UL62SJ3BCK2/18EPCPE INTERCHANGEABLE
Cable,power,electrical
Underwriters Laboratories Inc
5950-00-387-5711 INTERCHANGEABLE
Core,electromagnetic Component
5945-00-397-5615 INTERCHANGEABLE
Plunger,solenoid
4710-00-453-3970 INTERCHANGEABLE
Tube Assembly
3030-01-093-2804 INTERCHANGEABLE
Belts,v,matched Set
6685-01-373-94868478 INTERCHANGEABLE
Thermocouple,contact
Hewlett-Packard Company Dba HP
6685-01-412-39488478 INTERCHANGEABLE
Indicator,temperature,electrical
Hoyt Corporation
5325-01-509-10538478 INTERCHANGEABLE
Grommet,nonmetallic
Keystone Electronics Corp
Cross-Reference Index
Part NumberManufacturer
8478 PRIMARY The Chelsea Clock Llc (USA)
Related Parts
9540-00-145-5731INTERCHANGEABLE
ANGLE,STRUCTURAL
60-8684
9540-00-145-5732INTERCHANGEABLE
ANGLE,STRUCTURAL
6145-00-244-8152INTERCHANGEABLE
CABLE,POWER,ELECTRICAL
UL62SJ3BCK2/18EPCPE
5950-00-387-5711INTERCHANGEABLE
CORE,ELECTROMAGNETIC COMPONENT
5945-00-397-5615INTERCHANGEABLE
PLUNGER,SOLENOID
4710-00-453-3970INTERCHANGEABLE
TUBE ASSEMBLY
3030-01-093-2804INTERCHANGEABLE
BELTS,V,MATCHED SET
6685-01-373-9486INTERCHANGEABLE
THERMOCOUPLE,CONTACT
8478
6685-01-412-3948INTERCHANGEABLE
INDICATOR,TEMPERATURE,ELECTRICAL
8478
5325-01-509-1053INTERCHANGEABLE
GROMMET,NONMETALLIC
8478

Frequently Asked Questions

What is NSN 6645-00-348-2841?

NSN 6645-00-348-2841 is a Cap,barrel, manufactured by The Chelsea Clock Llc, classified under FSC 6645 (No Item Name Available). Status: active.

What are the part numbers for NSN 6645-00-348-2841?

NSN 6645-00-348-2841 has 1 cross-referenced part number: 8478 (The Chelsea Clock Llc).

What NSN replaces 6645-00-348-2841?

There are 10 known substitutes for 6645-00-348-2841: 9540-00-145-5731, 9540-00-145-5732, 6145-00-244-8152 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8478?

Key specifications for 8478: General Characteristics Item Description: BRASS; 1-5/8 IN. DIA IN. 1 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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