PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15665-3Mounting Base

Hutchinson Aerospace & Industry, Inc. · NSN 6340-00-765-3878 · FSC 6340 · No Item Name Available
Verified by PartsTable
NSN 6340-00-765-3878 — this item is cataloged by the U.S. Government under National Stock Number 6340-00-765-3878. Primary manufacturer part number: 15665-3.
Features
  • Mounting Base — FSC 6340
  • General Characteristics Item Description: MATERIAL ALUMINUM;LOAD RANGE EACH FRONT MOUNT 0.44 TO 0.75 LB,EACH REAR MOUNT 0.38 TO 0.54 LB,TOTAL LOAD RANGE 1.64 LB TO 2.58 LB;DIM 4.250 IN.LG,4.250 IN.W LBS
  • 2 verified cross-references
  • Primary manufacturer: Hutchinson Aerospace & Industry, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mounting Base, cataloged under National Stock Number 6340-00-765-3878, is classified within Federal Supply Class 6340 (No Item Name Available) of the Alarm, Signal, and Security Detection Systems group. The primary manufacturer of record is Hutchinson Aerospace & Industry, Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6340-00-765-3878
Primary Part Number15665-3
Item NameMounting Base
FSC / FSG6340 / 63 — No Item Name Available
ManufacturerHutchinson Aerospace & Industry, Inc.
StatusACTIVE
General Characteristics Item DescriptionMATERIAL ALUMINUM;LOAD RANGE EACH FRONT MOUNT 0.44 TO 0.75 LB,EACH REAR MOUNT 0.38 TO 0.54 LB,TOTAL LOAD RANGE 1.64 LB TO 2.58 LB;DIM 4.250 IN.LG,4.250 IN.W LBS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-298-5744PH254 INTERCHANGEABLE
Retainer,packing
Wisconsin Motors, Llc
5360-00-382-8168 INTERCHANGEABLE
Spring,helical,torsion
5950-00-827-958410913 INTERCHANGEABLE
Reactor
Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems
4210-00-935-1656 INTERCHANGEABLE
Extinguisher,fire
5961-00-957-6865 INTERCHANGEABLE
Semiconductor Device,diode
5310-01-023-8371156653 INTERCHANGEABLE
Washer
Telemechanics Inc
4820-01-105-5660159-00 INTERCHANGEABLE
Packing Chamber,val
Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
4730-01-219-20653A2878 INTERCHANGEABLE
Plug,pipe
Link-Belt Cranes, L.p., Lllp
6320-01-377-0033 INTERCHANGEABLE
Panel,salinity Monitoring and Al
6320-01-380-0561 INTERCHANGEABLE
Panel,salinity Monitoring and Al
Cross-Reference Index
Part NumberManufacturer
15665-3 PRIMARY Hutchinson Aerospace & Industry, Inc. (USA)
15900 Avox Systems Inc Dba Avox Systems Inc (USA)
Related Parts
5330-00-298-5744INTERCHANGEABLE
RETAINER,PACKING
PH254
5360-00-382-8168INTERCHANGEABLE
SPRING,HELICAL,TORSION
5950-00-827-9584INTERCHANGEABLE
REACTOR
10913
4210-00-935-1656INTERCHANGEABLE
EXTINGUISHER,FIRE
5961-00-957-6865INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5310-01-023-8371INTERCHANGEABLE
WASHER
156653
4820-01-105-5660INTERCHANGEABLE
PACKING CHAMBER,VAL
159-00
4730-01-219-2065INTERCHANGEABLE
PLUG,PIPE
3A2878
6320-01-377-0033INTERCHANGEABLE
PANEL,SALINITY MONITORING AND AL
6320-01-380-0561INTERCHANGEABLE
PANEL,SALINITY MONITORING AND AL
6150-01-468-8885INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
4820-01-470-8471INTERCHANGEABLE
PACKING CHAMBER,VLV

Frequently Asked Questions

What is NSN 6340-00-765-3878?

NSN 6340-00-765-3878 is a Mounting Base, manufactured by Hutchinson Aerospace & Industry, Inc., classified under FSC 6340 (No Item Name Available). Status: active.

What are the part numbers for NSN 6340-00-765-3878?

NSN 6340-00-765-3878 has 2 cross-referenced part numbers: 15665-3 (Hutchinson Aerospace & Industry, Inc.), 15900 (Avox Systems Inc Dba Avox Systems Inc).

What NSN replaces 6340-00-765-3878?

There are 12 known substitutes for 6340-00-765-3878: 5330-00-298-5744, 5360-00-382-8168, 5950-00-827-9584 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 15665-3?

Key specifications for 15665-3: General Characteristics Item Description: MATERIAL ALUMINUM;LOAD RANGE EACH FRONT MOUNT 0.44 TO 0.75 LB,EACH REAR MOUNT 0.38 TO 0.54 LB,TOTAL LOAD RANGE 1.64 LB TO 2.58 LB;DIM 4.250 IN.LG,4.250 IN.W LBS. 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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