The Tee,pipe, cataloged under National Stock Number 4730-01-469-9503, 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 Pennsylvania Machine Works, Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-469-9503 |
| Primary Part Number | 1981300201 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Pennsylvania Machine Works, Llc |
| Status | ACTIVE |
| Flow Angle | 90.0 DEGREES |
| Nominal Pipe Size Accommodated | 1.000 INCHES SECOND END IN |
| Nominal Pipe Size Accommodated | 1.000 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 0.500 INCHES THIRD END IN |
| Connection Style | REDUCED SOCKET (PIPE) ALL ENDS |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | ASME B16.34 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Leg Length | 2.760 INCHES NOMINAL ALL ENDS IN |
| Reduced Passage Nominal Inside Diameter | 0.500 INCHES SECOND END IN |
| Specification/standard Data | ASME B16.11 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Nondefinitive Spec/std Data | 4 TABLE AND 1 SIZE AND 80 SCHEDULE |
| Media for Which Designed | WATER, SALT SINGLE RESPONSE |
| Material | STEEL 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 |
|---|---|
| 1981300201 PRIMARY | Pennsylvania Machine Works, Llc (USA) |
| 99-D225 PRIMARY | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| ANSI-B16.11 1X1 1/2NPS STL | 5/1 Secondary reference U.S. Government activity |
NSN 4730-01-469-9503 is a Tee,pipe, manufactured by Pennsylvania Machine Works, Llc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-469-9503 has 2 manufacturer part numbers on file: 1981300201 (Pennsylvania Machine Works, Llc), 99-D225 (Derbyshire Machine & Tool Co).
Key specifications for 1981300201: Flow Angle: 90.0 DEGREES; Nominal Pipe Size Accommodated: 1.000 INCHES SECOND END IN; Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN; Nominal Pipe Size Accommodated: 0.500 INCHES THIRD END IN. 14 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.