The Sleeve,clinch,tube Fitting, cataloged under National Stock Number 4730-01-441-2138, 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 Derbyshire Machine & Tool Co. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-441-2138 |
| Primary Part Number | 211048641 |
| Item Name | Sleeve,clinch,tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Surface Treatment | NICKEL |
| Material | STEEL |
| 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 |
|---|---|
| 6406831-3 | Naval Sea Systems Command (USA) |
| 211048641 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| 751-6406831-3 | Naval Sea Systems Command (USA) |
| 211048641 | Ronald Lee Foust II (USA) |
| Reference | Meaning |
|---|---|
| 751-6406831 | D/9 Drawing number reference only Naval Sea Systems Command |
NSN 4730-01-441-2138 is a Sleeve,clinch,tube Fitting, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-441-2138 has 4 manufacturer part numbers on file: 6406831-3 (Naval Sea Systems Command), 211048641 (Derbyshire Machine & Tool Co), 751-6406831-3 (Naval Sea Systems Command), 211048641 (Ronald Lee Foust II).
1 possible match (shared part number, not a government interchangeability claim): 2530-01-445-8377. Verify interchangeability with system specifications before substitution.
Key specifications for 211048641: Special Features: NHA=HOUSING ASSEMBLY; Surface Treatment: NICKEL; End Item Identification: SEAWOLF CLASS SSN; Material: STEEL. 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.