The Union,pipe, cataloged under National Stock Number 4730-01-300-9822, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4730-01-300-9822 |
| Primary Part Number | 2621-791-02 PIECE 7AL1 |
| Item Name | Union,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| FSC Application Data | PIPING-MISSLE GAS REDUCING STATION |
| Nominal Pipe Size Accommodated | 0.5455 INCHES SECOND END IN |
| Connection Style | SOCKET (PIPE) FIRST END |
| Connection Style | PLAIN (PIPE) SECOND END |
| Coupling Flange Shape | HEXAGON |
| Nominal Overall Length | 1.188 INCHES IN |
| Criticality Code Justification | ZZZY |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL PIPE SECOND END |
| Style Designator | SCREWED |
| Material Document and Classification | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 5100.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 1.188 INCHES SECOND END IN |
| Media for Which Designed | GAS SINGLE RESPONSE |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UN SECOND END |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Reducer Type | CONCENTRIC |
| 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 |
|---|---|
| 2621-791-02 PIECE 7AL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 704-4685319 ITEM F23L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 2621-791-02 PIECE 7A | 5/1 Secondary reference U.S. Government activity |
| 704-4685319 ITEM F23 | 3/1 Design control — primary reference U.S. Government activity |
NSN 4730-01-300-9822 is a Union,pipe, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-300-9822 has 2 manufacturer part numbers on file: 2621-791-02 PIECE 7AL1 (Naval Inventory Control Point Mechanicsburg), 704-4685319 ITEM F23L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 2621-791-02 PIECE 7AL1: FSC Application Data: PIPING-MISSLE GAS REDUCING STATION; Nominal Pipe Size Accommodated: 0.5455 INCHES SECOND END IN; Connection Style: SOCKET (PIPE) FIRST END; Connection Style: PLAIN (PIPE) SECOND END. 20 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.