The Clamp,hose, cataloged under National Stock Number 4730-01-040-3950, 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 Biomarine Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-040-3950 |
| Primary Part Number | 200-513 |
| Item Name | Clamp,hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Biomarine Inc |
| Status | ACTIVE |
| Fastening Device Type | PLAIN SLOTTED HEAD SCREW |
| Style Designator | BAND |
| Material Document and Classification | MIL-S-5950 MIL SPEC SINGLE MATERIAL RESPONSE BAND |
| Inside Diameter | 12.680 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE BOLT |
| Surface Treatment | PASSIVATE BAND |
| Material | STEEL COMP 301 BAND |
| Material | STEEL CORROSION RESISTING NUT |
| Material | STEEL CORROSION RESISTING BOLT |
| 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 |
|---|---|
| C3011K3812 | Biomarine Inc (USA) |
| C3011K-38-1268-K | Voss Industries, Llc (USA) |
| 400-174-10 | Biomarine Inc (USA) |
| 200-513 PRIMARY | Biomarine Inc (USA) |
| Reference | Meaning |
|---|---|
| 200-513 | 5/9 Secondary reference Mar-Vel International, Inc. Dba Mar-Vel Underwater Equip |
NSN 4730-01-040-3950 is a Clamp,hose, manufactured by Biomarine Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-040-3950 has 4 manufacturer part numbers on file: C3011K3812 (Biomarine Inc), C3011K-38-1268-K (Voss Industries, Llc), 400-174-10 (Biomarine Inc), 200-513 (Biomarine Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4310-01-353-7522, 8415-01-561-1465. Verify interchangeability with system specifications before substitution.
Key specifications for 200-513: Fastening Device Type: PLAIN SLOTTED HEAD SCREW; Style Designator: BAND; Material Document and Classification: MIL-S-5950 MIL SPEC SINGLE MATERIAL RESPONSE BAND; Overall Width: 0.375 INCHES NOMINAL IN. 9 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.