The Retainer,check Valv, cataloged under National Stock Number 4730-01-445-4036, 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 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-445-4036 |
| Primary Part Number | 218002086 |
| Item Name | Retainer,check Valv |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL I/A/W ASTM B150, AL UNS C83200; USED TO SECURE CHECK VALVE TO MANIFOLD MODELS HP-172 / HS-172 |
| 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 |
|---|---|
| 218002086 PRIMARY | Naval Sea Systems Command (USA) |
| 556-6406592-MRHF-B6 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 6406592 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-445-4036 is a Retainer,check Valv, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-445-4036 has 2 manufacturer part numbers on file: 218002086 (Naval Sea Systems Command), 556-6406592-MRHF-B6 (Naval Sea Systems Command).
Key specifications for 218002086: General Characteristics Item Description: MATERIAL I/A/W ASTM B150, AL UNS C83200; USED TO SECURE CHECK VALVE TO MANIFOLD MODELS HP-172 / HS-172; End Item Identification: SEAWOLF CLASS SSN. 1 specification is 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.