PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124-7121004 PC 28Connecting Link,rigid

Naval Sea Systems Command · NSN 3040-01-491-6586 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-01-491-6586 — this item is cataloged by the U.S. Government under National Stock Number 3040-01-491-6586. Primary manufacturer part number: 124-7121004 PC 28.
Features
  • Connecting Link,rigid — FSC 3040
  • End Attachment Style: EYE FIRST END
  • End Attachment Hole Diameter: 1.000 INCHES NOMINAL FIRST END IN
  • End Attachment Width: 0.500 INCHES NOMINAL FIRST END IN
  • Body Diameter: 0.875 INCHES NOMINAL IN
  • Body Construction: SOLID
  • Link Style: EYE TO EXTERNAL THREAD
  • Material Document and Classification: S-22698 MIL SPEC SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Steel construction
General Description

The Connecting Link,rigid, cataloged under National Stock Number 3040-01-491-6586, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-01-491-6586
Primary Part Number124-7121004 PC 28
Item NameConnecting Link,rigid
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
End Attachment StyleEYE FIRST END
End Attachment Hole Diameter1.000 INCHES NOMINAL FIRST END IN
End Attachment Width0.500 INCHES NOMINAL FIRST END IN
Body Diameter0.875 INCHES NOMINAL IN
Body ConstructionSOLID
Link StyleEYE TO EXTERNAL THREAD
Material Document and ClassificationS-22698 MIL SPEC SINGLE MATERIAL RESPONSE
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3040-01-491-6541124-7121004 PC 27 INTERCHANGEABLE
Connecting Link,rigid
Naval Sea Systems Command
5340-01-492-1052124-7121004 PC38 INTERCHANGEABLE
Handwheel
Naval Sea Systems Command
5340-01-492-1053124-7121004 PC39 INTERCHANGEABLE
Handwheel
Naval Sea Systems Command
2040-01-492-2192124-7121004 PC 14 X 21 INTERCHANGEABLE
Dog Assembly,hatch
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
124-7121004 PC 28 PRIMARY Naval Sea Systems Command (USA)
124-7121004 Naval Sea Systems Command (USA)
Related Parts
3040-01-491-6541INTERCHANGEABLE
CONNECTING LINK,RIGID
124-7121004 PC 27
5340-01-492-1052INTERCHANGEABLE
HANDWHEEL
124-7121004 PC38
5340-01-492-1053INTERCHANGEABLE
HANDWHEEL
124-7121004 PC39
2040-01-492-2192INTERCHANGEABLE
DOG ASSEMBLY,HATCH
124-7121004 PC 14 X 21

Frequently Asked Questions

What is NSN 3040-01-491-6586?

NSN 3040-01-491-6586 is a Connecting Link,rigid, manufactured by Naval Sea Systems Command, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-01-491-6586?

NSN 3040-01-491-6586 has 2 cross-referenced part numbers: 124-7121004 PC 28 (Naval Sea Systems Command), 124-7121004 (Naval Sea Systems Command).

What NSN replaces 3040-01-491-6586?

There are 4 known substitutes for 3040-01-491-6586: 3040-01-491-6541, 5340-01-492-1052, 5340-01-492-1053 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124-7121004 PC 28?

Key specifications for 124-7121004 PC 28: Part Name Assigned by Controlling Agency: PUSHROD - LONG; Special Features: LENGTH FROM THREADED END TO CENTERLINE OF EYE IS 10.250 INCHES; THREADED END LENGTH IS 1.500 INCHES. IN; End Attachment Style: EYE FIRST END; End Attachment Hole Diameter: 1.000 INCHES NOMINAL FIRST END IN. 11 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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