The Reducer,boss, cataloged under National Stock Number 4730-01-577-4218, 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 Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-577-4218 |
| Primary Part Number | 8 F5OLO-S N0507 |
| Item Name | Reducer,boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division |
| Status | ACTIVE |
| Nominal Width Across Flats | 0.880 INCHES CENTER BULKHEAD IN |
| Surface Treatment Document and Classification | ASTM B633, TYPE II, FE/ZN8, CR+6 FREE ZINC ASSN STD SINGLE TREATMENT RESPONSE BOLT |
| Nominal Overall Length | 1.440 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL TUBE FIRST END |
| Connection Type | THREADED INTERNAL HOSE SECOND END |
| Style Designator | SWAGED AND THREADED INTERNAL SWIVEL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Operating Pressure | 9000.2 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Maximum Operating Temp | 180.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | ZINC BODY |
| Thread Class | 2A SECOND END A |
| Thread Quantity Per Inch | 16 SECOND END |
| Material | STEEL BODY |
| Thread Series Designator | UN AND UNF SECOND END |
| 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 |
|---|---|
| 8 F5OLO-S N0507 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division (USA) |
| Reference | Meaning |
|---|---|
| 8 F5OLO-S N0507 | 3/9 Design control — primary reference Parker Hannifin Corp Tube Fitting Div |
| 12506141-003 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12506141 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 4730-01-577-4218 is a Reducer,boss, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-577-4218 has 1 manufacturer part number on file: 8 F5OLO-S N0507 (Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-578-1130. Verify interchangeability with system specifications before substitution.
Key specifications for 8 F5OLO-S N0507: Nominal Width Across Flats: 0.880 INCHES CENTER BULKHEAD IN; Surface Treatment Document and Classification: ASTM B633, TYPE II, FE/ZN8, CR+6 FREE ZINC ASSN STD SINGLE TREATMENT RESPONSE BOLT; Nominal Overall Length: 1.440 INCHES IN; Connection Type: UNTHREADED EXTERNAL TUBE FIRST END. 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.