The Tee,flange to Tube, cataloged under National Stock Number 4730-01-337-3952, 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 Inventory Control Point Mechanicsburg. Government technical data includes 16 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-337-3952 |
| Primary Part Number | 2621-754-02 PC R157AL1 |
| Item Name | Tee,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Flange Shape | ROUND FIRST END |
| Flange Shape | ROUND THIRD END |
| FSC Application Data | INTERIOR 3 IN LAUNCHERS IN |
| Connection Style | BEVELED (TUBE) SECOND END |
| Criticality Code Justification | ZZZY |
| Connection Type | FLANGE FIRST END |
| Connection Type | FLANGE THIRD END |
| Connection Type | BUTT WELD TUBE SECOND END |
| Nominal Outside Diameter Tube Accommodated | 3.000 INCHES SECOND END IN |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Outside Diameter | 5.750 INCHES THIRD END IN |
| Nominal Outside Diameter | 8.120 INCHES FIRST END IN |
| Material | COPPER ALLOY 964 OVERALL |
| Nominal Thickness | 1.500 INCHES FIRST END IN |
| Nominal Thickness | 1.120 INCHES THIRD END IN |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 2621-754-02 PC R157AL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 711-4678181 ITEM F3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2621-754-02 PC R157A | 3/1 Design control — primary reference U.S. Government activity |
| 711-4678181 ITEM F3 | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-337-3952 is a Tee,flange to Tube, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-337-3952 has 2 manufacturer part numbers on file: 2621-754-02 PC R157AL1 (Naval Inventory Control Point Mechanicsburg), 711-4678181 ITEM F3L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2621-754-02 PC R157AL1: Flange Shape: ROUND FIRST END; Flange Shape: ROUND THIRD END; FSC Application Data: INTERIOR 3 IN LAUNCHERS IN; Connection Style: BEVELED (TUBE) SECOND END. 16 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.