The Reducer,boss, cataloged under National Stock Number 4730-00-618-6765, 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 Satair A/s. Government technical data includes 16 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through both NSN and commercial part number lookups. 15 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-618-6765 |
| Primary Part Number | AN919-15J |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Satair A/s |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE |
| Surface Treatment Document and Classification | MIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) ALL ENDS |
| Nominal Overall Length | 1.750 INCHES IN |
| Connection Type | THREADED EXTERNAL BOSS ALL ENDS |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Specification/standard Data | 88044-AN919 GOVERNMENT STANDARD |
| Maximum Operating Temp | 275.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A ALL ENDS A |
| Material | STEEL COMP 304 OVERALL |
| Thread Series Designator | UNF 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 |
|---|---|
| AN919-15J | Satair A/s (DNK) |
| Reference | Meaning |
|---|---|
| 21C1539-060 | 5/9 Secondary reference General Electric Company |
| AN919-15J | 5/9 Secondary reference Collins Engineering Corp |
| AN919-15J | 5/9 Secondary reference Crown Fitting Co Inc |
| SAE-AS4841 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS5174 | 5/9 Secondary reference Sae International Dba Sae International |
| AS4841 | 5/9 Secondary reference U.S. Government activity |
| AN919-15J | 5/9 Secondary reference U.S. Government activity |
| AN919-15J | 5/9 Secondary reference Faber Enterprises, Inc. Div Faber Enterprise Inc |
| AN919-15J | 5/9 Secondary reference Designed Metal Connections Inc Dba Permaswage Usa Div Permaswage, a Pcc Company |
| AN919-15J | 5/9 Secondary reference Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution |
| 21C1592-64 | 5/9 Secondary reference General Electric Company |
| AS5174 | 5/9 Secondary reference U.S. Government activity |
| AN919-15J | 5/9 Secondary reference Acra Aerospace, Llc |
| 10108429 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| AS4841 | 3/1 Design control — primary reference Sae International Dba Sae International |
NSN 4730-00-618-6765 is a Reducer,boss, manufactured by Satair A/s, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-618-6765 has 1 manufacturer part number on file: AN919-15J (Satair A/s).
Key specifications for AN919-15J: Surface Treatment Document and Classification: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE; Surface Treatment Document and Classification: MIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE; Connection Style: FLARED W/ GASKET SEAL (BOSS) ALL ENDS; Nominal Overall Length: 1.750 INCHES IN. 16 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.