PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

687686Connecting Link,rigid

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 3040-00-344-9655 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-344-9655 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-344-9655. Primary manufacturer part number: 687686.
Features
  • Connecting Link,rigid — FSC 3040
  • 2 verified cross-references
  • Primary manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Connecting Link,rigid, cataloged under National Stock Number 3040-00-344-9655, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-344-9655
Primary Part Number687686
Item NameConnecting Link,rigid
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-348-896149212 INTERCHANGEABLE
Seal,plain Encased
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
4320-00-783-4307687286 INTERCHANGEABLE
Ring,wearing
Hamilton Sundstrand Corporation
Cross-Reference Index
Part NumberManufacturer
687686 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
806792 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5330-00-348-8961INTERCHANGEABLE
SEAL,PLAIN ENCASED
49212
4320-00-783-4307INTERCHANGEABLE
RING,WEARING
687286

Frequently Asked Questions

What is NSN 3040-00-344-9655?

NSN 3040-00-344-9655 is a Connecting Link,rigid, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-344-9655?

NSN 3040-00-344-9655 has 2 cross-referenced part numbers: 687686 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 806792 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 3040-00-344-9655?

There are 2 known substitutes for 3040-00-344-9655: 5330-00-348-8961, 4320-00-783-4307. Verify interchangeability with system specifications before substitution.

What are the specifications of 687686?

Key specifications for 687686: Special Features: SPACER 2; SPRING 4; ARM 1; DOWEL PIN 3; NUT 3. 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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