The Tube,metallic, cataloged under National Stock Number 4710-01-331-2786, is classified within Federal Supply Class 4710 (Pipe, Tube and Rigid Tubing) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 4 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4710-01-331-2786 |
| Primary Part Number | R-398-A PIECE 33 |
| Item Name | Tube,metallic |
| FSC / FSG | 4710 / 47 — Pipe, Tube and Rigid Tubing |
| Manufacturer | Circor Naval Solutions Llc Dba Warren Pumps |
| Status | ACTIVE |
| Cross-Sectional Shape Style | PLAIN ROUND |
| Second End Relationship with First End | IDENTICAL |
| Material | COPPER ALLOY |
| Construction | SEAMLESS |
| 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 |
|---|---|
| R-398-A PIECE 33 PRIMARY | Circor Naval Solutions Llc Dba Warren Pumps (USA) |
NSN 4710-01-331-2786 is a Tube,metallic, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4710, Pipe, Tube and Rigid Tubing. Status: active.
NSN 4710-01-331-2786 has 1 manufacturer part number on file: R-398-A PIECE 33 (Circor Naval Solutions Llc Dba Warren Pumps).
Key specifications for R-398-A PIECE 33: Cross-Sectional Shape Style: PLAIN ROUND; Second End Relationship with First End: IDENTICAL; End Item Identification: WARREN PUMPS MODEL 1 1/2-SECA-6 PUMP; Material: COPPER ALLOY. 4 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.