PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-1503Bridge Assy,top

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 6685-00-625-7243 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-00-625-7243 — this item is cataloged by the U.S. Government under National Stock Number 6685-00-625-7243. Primary manufacturer part number: 21-1503.
Features
  • Bridge Assy,top — FSC 6685
  • 2 verified cross-references
  • Primary manufacturer: Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Bridge Assy,top, cataloged under National Stock Number 6685-00-625-7243, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameBridge Assy,top
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersHorizon Aerospace Llc Dba Magnetics Division (CAGE 35918); Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (CAGE 50027)
Technical Specifications
ParameterValue
NSN6685-00-625-7243
Primary Part Number21-1503
Item NameBridge Assy,top
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5305-00-019-3255 INTERCHANGEABLE
Screw,machine
5910-01-141-833221-1709 INTERCHANGEABLE
Capacitor
Astronics Test Systems Inc
5970-01-667-4744 INTERCHANGEABLE
Insulator,angle Bracket
Cross-Reference Index
Part NumberManufacturer
21-1503 Horizon Aerospace Llc Dba Magnetics Division (USA)
21-1503 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
Related Parts
5305-00-019-3255INTERCHANGEABLE
SCREW,MACHINE
5910-01-141-8332INTERCHANGEABLE
CAPACITOR
21-1709
5970-01-667-4744INTERCHANGEABLE
INSULATOR,ANGLE BRACKET

Frequently Asked Questions

What is NSN 6685-00-625-7243?

NSN 6685-00-625-7243 is a Bridge Assy,top, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 6685 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6685-00-625-7243?

NSN 6685-00-625-7243 has 2 cross-referenced part numbers: 21-1503 (Horizon Aerospace Llc Dba Magnetics Division), 21-1503 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).

What NSN replaces 6685-00-625-7243?

There are 3 known substitutes for 6685-00-625-7243: 5305-00-019-3255, 5910-01-141-8332, 5970-01-667-4744. Verify interchangeability with system specifications before substitution.

Is NSN 6685-00-625-7243 still in active supply?

NSN 6685-00-625-7243 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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