The Connecting Link,rigid, cataloged under National Stock Number 3040-00-571-0375, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-00-571-0375 |
| Primary Part Number | 20-68313-1 |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Body Diameter | 0.500 INCHES NOMINAL IN |
| Body Construction | TUBULAR |
| Link Style | CLEVIS TO EXTERNAL THREAD |
| End Attachment Hole Diameter | 0.188 INCHES NOMINAL FIRST END IN |
| Surface Treatment | PASSIVATE |
| End Attachment Length | 1.665 INCHES NOMINAL FIRST END IN |
| Material | STEEL CORROSION RESISTING |
| End Attachment Fork Width | 0.500 INCHES NOMINAL FIRST END IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20-68313-1 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 20-68313-1 | 5/9 Secondary reference L and E Machine Experimental Lab Inc |
NSN 3040-00-571-0375 is a Connecting Link,rigid, manufactured by The Boeing Company Div Defense, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-00-571-0375 has 1 manufacturer part number on file: 20-68313-1 (The Boeing Company Div Defense).
Key specifications for 20-68313-1: Body Diameter: 0.500 INCHES NOMINAL IN; Body Construction: TUBULAR; Link Style: CLEVIS TO EXTERNAL THREAD; Overall Length: 31.820 INCHES NOMINAL IN. 8 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.