The Adapter,straight,pipe to Boss, cataloged under National Stock Number 4730-01-199-3121, 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 Wheeler Fleet Solutions, Co.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-199-3121 |
| Primary Part Number | 1857-64569N |
| Item Name | Adapter,straight,pipe to Boss |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Wheeler Fleet Solutions, Co. |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.250 INCHES FIRST END IN |
| Connection Style | SOCKET (PIPE) FIRST END |
| Connection Style | FLARED W/ GASKET SEAL (BOSS) SECOND END |
| Nominal Overall Length | 1.390 INCHES IN |
| Connection Type | UNTHREADED INTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL BOSS SECOND END |
| Nominal Thread Size | 0.437 INCHES SECOND END IN |
| Media for Which Designed | GAS, LIQUEFIED SINGLE RESPONSE |
| Thread Class | 2A SECOND END A |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | 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 |
|---|---|
| 1857-64569N PRIMARY | Wheeler Fleet Solutions, Co. (USA) |
| 64569 PRIMARY | Tyco Fire Products Lp (USA) |
| Reference | Meaning |
|---|---|
| 64569N | 5/9 Secondary reference Tyco Fire Products Lp |
NSN 4730-01-199-3121 is a Adapter,straight,pipe to Boss, manufactured by Wheeler Fleet Solutions, Co., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-199-3121 has 2 manufacturer part numbers on file: 1857-64569N (Wheeler Fleet Solutions, Co.), 64569 (Tyco Fire Products Lp).
Key specifications for 1857-64569N: Nominal Pipe Size Accommodated: 0.250 INCHES FIRST END IN; Connection Style: SOCKET (PIPE) FIRST END; Connection Style: FLARED W/ GASKET SEAL (BOSS) SECOND END; Nominal Overall Length: 1.390 INCHES IN. 11 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.