The Reducer,boss, cataloged under National Stock Number 4730-01-179-9867, 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 Raytheon Company. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-179-9867 |
| Primary Part Number | 5188836 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE1,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A |
| Connection Style | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Nominal Overall Length | 1.063 INCHES IN |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Material Document and Classification | QQ-A-225/6,2024-T4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Size | 1.063 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Thread Quantity Per Inch | 12 SECOND END |
| Material | ALUMINUM ALLOY 2024 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) FIRST END |
| Thread Series Designator | UNIFIED NATIONAL JOINT (UNJ) 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 |
| Part Number | Manufacturer |
|---|---|
| 0098-LL-TJ2-4471 | Naval Sea Systems Command (USA) |
| 5188836 PRIMARY | Raytheon Company (USA) |
| 5188836 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 4730PL0976183 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4730-01-179-9867 is a Reducer,boss, manufactured by Raytheon Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-179-9867 has 3 manufacturer part numbers on file: 0098-LL-TJ2-4471 (Naval Sea Systems Command), 5188836 (Raytheon Company), 5188836 (Naval Sea Systems Command).
Key specifications for 5188836: Surface Treatment Document and Classification: MIL-A-8625,TYPE1,CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE OVERALL A; Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (BOSS) FIRST END; Nominal Overall Length: 1.063 INCHES IN. 17 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.