The Lock,carriage, cataloged under National Stock Number 4520-01-418-4728, is classified within Federal Supply Class 4520 (Space and Water Heating Equipment) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4520-01-418-4728 |
| Primary Part Number | 566-6404315-1 |
| Item Name | Lock,carriage |
| FSC / FSG | 4520 / 45 — Space and Water Heating Equipment |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL: NICKEL ALUMINUM BRONZE, ASTM-B150 ALY C63200 |
| Material | NICKEL ALLOY |
| 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 |
|---|---|
| DF2018-64 FIND 1 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 211094358 | Naval Sea Systems Command (USA) |
| 566-6404315-1 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211059271 | 5/9 Secondary reference Naval Sea Systems Command |
| DN2018-64A6 | D/9 Drawing number reference only Huntington Ingalls Inc Div Newport News Shipbuilding |
| 566-6404315 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4520-01-418-4728 is a Lock,carriage, manufactured by Naval Sea Systems Command, classified under FSC 4520, Space and Water Heating Equipment. Status: active.
NSN 4520-01-418-4728 has 3 manufacturer part numbers on file: DF2018-64 FIND 1 (Huntington Ingalls Inc Div Newport News Shipbuilding), 211094358 (Naval Sea Systems Command), 566-6404315-1 (Naval Sea Systems Command).
1 possible match (shared part number, not a government interchangeability claim): 2040-01-443-1478. Verify interchangeability with system specifications before substitution.
Key specifications for 566-6404315-1: Overall Height: 4.000 INCHES NOMINAL IN; General Characteristics Item Description: MATERIAL: NICKEL ALUMINUM BRONZE, ASTM-B150 ALY C63200; Overall Length: 35.000 INCHES NOMINAL IN; Overall Width: 6.000 INCHES NOMINAL IN. 2 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.