The Tee,pipe, cataloged under National Stock Number 4730-01-421-8778, 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 7 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-421-8778 |
| Primary Part Number | 508-6817209 ITEM F-1 |
| Item Name | Tee,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.000 INCHES ALL ENDS IN |
| Connection Type | UNTHREADED INTERNAL PIPE ALL ENDS |
| Material Document and Classification | MIL-C-15726,70-30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | WATER SECOND RESPONSE |
| Media for Which Designed | AIR FIRST 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 |
|---|---|
| 508-6817209 ITEM F-1 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 97-15-861 257003 PC236 | 3/9 Design control — primary reference W & O Supply Inc |
| 9715861 | 5/9 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 1033-236-3E | 5/9 Secondary reference Nucraloy Corp |
| 508-6817209,ITE | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 4730-01-421-8778 is a Tee,pipe, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-8778 has 1 manufacturer part number on file: 508-6817209 ITEM F-1 (Naval Sea Systems Command).
Key specifications for 508-6817209 ITEM F-1: Nominal Pipe Size Accommodated: 1.000 INCHES ALL ENDS IN; Connection Type: UNTHREADED INTERNAL PIPE ALL ENDS; Material Document and Classification: MIL-C-15726,70-30 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 7 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.