The Strainer,sediment, cataloged under National Stock Number 4730-01-503-2173, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-503-2173 |
| Primary Part Number | 803-6404573 ASSY 99 |
| Item Name | Strainer,sediment |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Filtering Media Design | PERFORATED SINGLE FILTERING MEDIA RESPONSE |
| Body Outside Diameter | 1.900 INCHES NOMINAL IN |
| Material Document and Classification | MIL-T-16420,CMPSN-70:30,CL-700,TY-I,GR-2 MIL SPEC SINGLE MATERIAL RESPONSE BODY |
| Body Length | 7.380 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Perforation Diameter | 0.250 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 |
|---|---|
| DF2741-318 ASSY 99 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 554-7068150-F121 | Naval Sea Systems Command (USA) |
| 803-6404573 ASSY 99 PRIMARY | Naval Sea Systems Command (USA) |
| 554-7015414-F108 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| H765-3101-F121 | 5/2 Secondary reference U.S. Government activity |
| H765-3511-F108 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-01-503-2173 is a Strainer,sediment, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-503-2173 has 4 manufacturer part numbers on file: DF2741-318 ASSY 99 (Huntington Ingalls Inc Div Newport News Shipbuilding), 554-7068150-F121 (Naval Sea Systems Command), 803-6404573 ASSY 99 (Naval Sea Systems Command), 554-7015414-F108 (Naval Sea Systems Command).
Key specifications for 803-6404573 ASSY 99: Filtering Media Design: PERFORATED SINGLE FILTERING MEDIA RESPONSE; Body Outside Diameter: 1.900 INCHES NOMINAL IN; Material Document and Classification: MIL-T-16420,CMPSN-70:30,CL-700,TY-I,GR-2 MIL SPEC SINGLE MATERIAL RESPONSE BODY; Body Length: 7.380 INCHES NOMINAL IN. 6 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.