The Reducer,boss, cataloged under National Stock Number 4730-00-188-8034, 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 14 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through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-188-8034 |
| Primary Part Number | AS5172-0506L |
| 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 | EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END |
| Connection Style | GASKET SEAL (BOSS) FIRST END |
| Nominal Overall Length | 1.109 INCHES IN |
| Connection Type | THREADED INTERNAL BOSS FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Thread Size | 0.562 INCHES SECOND END IN |
| Nominal Thread Size | 0.438 INCHES FIRST END IN |
| Specification/standard Data | 96906-MS24397 GOVERNMENT STANDARD |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A SECOND END A |
| Thread Class | 3B FIRST END |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
|---|---|
| 70001-576 | Defence Liaison Services Pty Ltd (AUS) |
| AN893-7 | Defence Liaison Services Pty Ltd (AUS) |
| AS5172-0506L PRIMARY | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| AN893-7 | 5/9 Secondary reference U.S. Government activity |
| AS4875 | 5/9 Secondary reference U.S. Government activity |
| AS4875 | 5/1 Secondary reference Sae International Dba Sae International |
| AN893-7 | 5/1 Secondary reference Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
| 70001-576 | 5/1 Secondary reference Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba |
| SAE-AS4875 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 4730PL0811826 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MS24397-7 | 5/9 Secondary reference U.S. Government activity |
| AS5172-0506L | 3/9 Design control — primary reference U.S. Government activity |
NSN 4730-00-188-8034 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 4730-00-188-8034 has 3 manufacturer part numbers on file: 70001-576 (Defence Liaison Services Pty Ltd), AN893-7 (Defence Liaison Services Pty Ltd), AS5172-0506L (Sae International Dba Sae International).
Key specifications for AS5172-0506L: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Style: GASKET SEAL (BOSS) FIRST END; Nominal Overall Length: 1.109 INCHES IN; Connection Type: THREADED INTERNAL BOSS FIRST END. 14 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.