The Reducer,boss, cataloged under National Stock Number 4730-01-320-5329, 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 15 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-320-5329 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Status | ACTIVE |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 2.000 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Operating Pressure | 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 1.062 INCHES FIRST END IN |
| Nominal Thread Size | 0.875 INCHES SECOND END IN |
| Specification/standard Data | 88044-AN919 GOVERNMENT STANDARD |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 FIRST END |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UN FIRST END |
| Thread Series Designator | UNF SECOND END |
| 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 | X |
| Reference | Meaning |
|---|---|
| AS5174 | 5/9 Secondary reference U.S. Government activity |
| 1412M41P01 | 5/9 Secondary reference General Electric Co |
| 1412M41 | 5/9 Secondary reference General Electric Co |
| AN919-20K | 5/9 Secondary reference U.S. Government activity |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AS5174K1210 | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-01-320-5329 is a Reducer,boss, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
Key specifications for 4730-01-320-5329: Connection Style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 2.000 INCHES IN; Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 15 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.