The Reducer,boss, cataloged under National Stock Number 4730-00-222-1802, 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 Sae International Dba Sae International. Government technical data includes 13 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through both NSN and commercial part number lookups. 14 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-222-1802 |
| Primary Part Number | AS5174-2012 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 2.250 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 | 1.625 INCHES FIRST END IN |
| Nominal Thread Size | 1.062 INCHES SECOND END IN |
| Specification/standard Data | 88044-AN919 GOVERNMENT STANDARD |
| Maximum Operating Temp | 71.0 CELSIUS SINGLE RESPONSE DEGC |
| Thread Class | 3A ALL ENDS A |
| Thread Quantity Per Inch | 12 ALL ENDS |
| Material | STEEL OVERALL |
| Thread Series Designator | UN ALL ENDS |
| 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 |
| Part Number | Manufacturer |
|---|---|
| AS5174-2012 PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AN919-25 | 5/9 Secondary reference Crown Fitting Co Inc |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AN919-25 | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AS5174-2012 | 5/9 Secondary reference U.S. Government activity |
| AN919-25 | 5/9 Secondary reference Collins Engineering Corp |
| AN919-25 | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| SAE-AS4841 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS4841 | 5/9 Secondary reference Sae International Dba Sae International |
| AS5174 | 5/9 Secondary reference U.S. Government activity |
| AN919-25 | 5/9 Secondary reference U.S. Government activity |
| AN919-25 | 5/9 Secondary reference Allan Aircraft Supply Co., Llc Dba Allan Aircraft Supply |
| AN919-25 | 5/9 Secondary reference Aerofit, Llc |
| AN919-25 | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AN919-25 | 5/9 Secondary reference Hydro-Fitting Manufacturing Corporation |
NSN 4730-00-222-1802 is a Reducer,boss, manufactured by Sae International Dba Sae International, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-222-1802 has 1 manufacturer part number on file: AS5174-2012 (Sae International Dba Sae International).
Key specifications for AS5174-2012: Connection Style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 2.250 INCHES IN; Connection Type: THREADED EXTERNAL BOSS ALL ENDS; Operating Pressure: 1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS. 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.