The Rowlock, cataloged under National Stock Number 2040-00-264-4503, is classified within Federal Supply Class 2040 (Marine Hardware and Hull Items) of the Ship and Marine Equipment group. Government technical data includes 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2040-00-264-4503 |
| Item Name | Rowlock |
| FSC / FSG | 2040 / 20 — Marine Hardware and Hull Items |
| Status | ACTIVE |
| Shank Diameter | 0.562 INCHES MAXIMUM IN |
| Shank Length | 3.250 INCHES NOMINAL IN |
| Quantity | 1 |
| Opening Width | 1.938 INCHES NOMINAL IN |
| Socket | NOT INCLUDED |
| Eye Location | SHANK BOTTOM END |
| Safety Chain Attaching Eye | INCLUDED |
| Material | ALUMINUM AND COPPER ALLOY |
| Auxiliary Swivel Jaw | NOT INCLUDED |
| Horn Shape | U-SHAPED |
| Reference Number Differentiating Characteristics | AS DIFFERENTIATED BY MATERIAL,SPECIAL FEATURES |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 25708PC4 | 3/1 Design control — primary reference U.S. Government activity |
NSN 2040-00-264-4503 is a Rowlock, classified under FSC 2040, Marine Hardware and Hull Items. Status: active.
Key specifications for 2040-00-264-4503: Shank Diameter: 0.562 INCHES MAXIMUM IN; Shank Length: 3.250 INCHES NOMINAL IN; Quantity: 1; Opening Width: 1.938 INCHES NOMINAL IN. 11 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.