The Connecting Link,rigid, cataloged under National Stock Number 3040-01-440-2558, is classified within Federal Supply Class 3040 (Miscellaneous Power Transmission Equipment) of the Mechanical Power Transmission Equipment group. The manufacturer of record is Tomkins Industries, Inc Dba Ruskin Manufacturing. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3040-01-440-2558 |
| Primary Part Number | 77-020061-00B 6 7/16IN |
| Item Name | Connecting Link,rigid |
| FSC / FSG | 3040 / 30 — Miscellaneous Power Transmission Equipment |
| Manufacturer | Tomkins Industries, Inc Dba Ruskin Manufacturing |
| Status | ACTIVE |
| Body Construction | SOLID |
| Link Style | STRAIGHT |
| Body Width | 1.000 INCHES NOMINAL IN |
| Material | STEEL CORROSION RESISTING |
| Body Thickness | 0.188 INCHES NOMINAL 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 |
|---|---|
| 77-020061-00B 6 7/16IN PRIMARY | Tomkins Industries, Inc Dba Ruskin Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 50-001104-14D | D/9 Drawing number reference only Tomkins Industries, Inc Dba Ruskin Manufacturing |
| 50-001104-14D CHG D FIND10 IT128 | 5/1 Secondary reference Tomkins Industries, Inc Dba Ruskin Manufacturing |
| 77-020061-00B | D/9 Drawing number reference only Tomkins Industries, Inc Dba Ruskin Manufacturing |
NSN 3040-01-440-2558 is a Connecting Link,rigid, manufactured by Tomkins Industries, Inc Dba Ruskin Manufacturing, classified under FSC 3040, Miscellaneous Power Transmission Equipment. Status: active.
NSN 3040-01-440-2558 has 1 manufacturer part number on file: 77-020061-00B 6 7/16IN (Tomkins Industries, Inc Dba Ruskin Manufacturing).
2 possible matches (shared part number, not a government interchangeability claim): 3040-01-440-4852, 3040-01-440-6232. Verify interchangeability with system specifications before substitution.
Key specifications for 77-020061-00B 6 7/16IN: Body Construction: SOLID; Link Style: STRAIGHT; Body Width: 1.000 INCHES NOMINAL IN; Overall Length: 4.719 INCHES NOMINAL IN. 5 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.