The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-113-7311, 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 12 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-113-7311 |
| Primary Part Number | 803-5001003-X73X-121 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES SECOND END |
| Flange Face Design | PLAIN SECOND END |
| Connection Style | STREAMLINED W/ ONE BRAZING RING (TUBE) FIRST END |
| Nominal Length | 3.812 INCHES SECOND END IN |
| Connection Type | FLANGE SECOND END |
| Connection Type | UNTHREADED INTERNAL TUBE FIRST END |
| Bolt Hole Nominal Diameter | 0.453 INCHES SECOND END IN |
| Operating Pressure | 700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Bolt Hole Quantity | 4 SECOND END |
| Nominal Width | 3.812 INCHES SECOND END IN |
| Media for Which Designed | WATER-OIL-GAS SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| 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 |
|---|---|
| 803-5001003-X73X-121 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2621-926-03 ITEM 4 ACLJ 1.5IN | 3/9 Design control — primary reference Circor Intl Inc |
| 2621-926-03 ITEM 4 ACLJ 1.5IN | 5/9 Secondary reference U.S. Government activity |
| 803-5001003 | D/9 Drawing number reference only Naval Sea Systems Command |
| 803-5001003-X73X-02 | 5/9 Secondary reference Naval Sea Systems Command |
| 2621-926-03 | D/9 Drawing number reference only U.S. Government activity |
| 502-02-14-0910 OCIL | 5/9 Secondary reference Circor Intl Inc |
| 502-02-14-0910-OCTL | 5/9 Secondary reference Circor Intl Inc |
NSN 4730-01-113-7311 is a Adapter,straight,flange to Tube, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-113-7311 has 1 manufacturer part number on file: 803-5001003-X73X-121 (Naval Sea Systems Command).
Key specifications for 803-5001003-X73X-121: Flange Shape: RECTANGULAR WITH HOLES SECOND END; Flange Face Design: PLAIN SECOND END; Connection Style: STREAMLINED W/ ONE BRAZING RING (TUBE) FIRST END; Nominal Length: 3.812 INCHES SECOND END IN. 12 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.