The Tee,pipe, cataloged under National Stock Number 4730-01-375-0318, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-375-0318 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Furnished Items and Quantity | 3 PREINSERTED RING |
| Nominal Pipe Size Accommodated | 0.750 INCHES THIRD END IN |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 0.750 INCHES FIRST END IN |
| Connection Style | SOCKET BRAZING RING (PIPE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | ASTM B-61 OR B-62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 0.969 INCHES NOMINAL SECOND END IN |
| Leg Length | 1.188 INCHES NOMINAL FIRST END IN |
| Leg Length | 1.188 INCHES NOMINAL THIRD END IN |
| Maximum Operating Temp | 425.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| 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 |
| Reference | Meaning |
|---|---|
| 5210309 PART 100 | 5/1 Secondary reference Naval Sea Systems Command |
| MIL-F-1183 | 5/9 Secondary reference U.S. Government activity |
| M1183/9-507A | 5/9 Secondary reference U.S. Government activity |
| 5210309 | D/9 Drawing number reference only Naval Sea Systems Command |
| M1183/9-507A | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-1183/9 | 4/1 Identification reference U.S. Government activity |
| 5121-120 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
| 00699067530911 | 5/1 Secondary reference Flagg Stanley G & Co Inc Dba Flagg Brass |
NSN 4730-01-375-0318 is a Tee,pipe, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4730-01-375-0321. Verify interchangeability with system specifications before substitution.
Key specifications for 4730-01-375-0318: Furnished Items and Quantity: 3 PREINSERTED RING; Nominal Pipe Size Accommodated: 0.750 INCHES THIRD END IN; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 0.750 INCHES FIRST END IN. 13 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.