The Reducer,pipe, cataloged under National Stock Number 4730-01-022-3920, 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 Flagg Stanley G & Co Inc Dba Flagg Brass. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-022-3920 |
| Primary Part Number | 5157 1INX1/4IN |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Flagg Stanley G & Co Inc Dba Flagg Brass |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 1.000 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 0.250 INCHES SECOND END IN |
| Connection Style | SOCKET (PIPE) SECOND END |
| Connection Style | SOCKET BRAZING RING (PIPE) FIRST END |
| Nominal Overall Length | 1.188 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Connection Type | UNTHREADED EXTERNAL PIPE FIRST END |
| Material Document and Classification | ASTM B61 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Operating Pressure | 200.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 232.0 CELSIUS SINGLE RESPONSE DEGC |
| Media for Which Designed | STEAM SINGLE RESPONSE |
| Material | COPPER ALLOY 922 OVERALL |
| 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 |
|---|---|
| 5157 1INX1/4IN PRIMARY | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
| 5157CODE196 | Flagg Stanley G & Co Inc Dba Flagg Brass (USA) |
NSN 4730-01-022-3920 is a Reducer,pipe, manufactured by Flagg Stanley G & Co Inc Dba Flagg Brass, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-022-3920 has 2 manufacturer part numbers on file: 5157 1INX1/4IN (Flagg Stanley G & Co Inc Dba Flagg Brass), 5157CODE196 (Flagg Stanley G & Co Inc Dba Flagg Brass).
Key specifications for 5157 1INX1/4IN: Nominal Pipe Size Accommodated: 1.000 INCHES FIRST END IN; Nominal Pipe Size Accommodated: 0.250 INCHES SECOND END IN; Connection Style: SOCKET (PIPE) SECOND END; Connection Style: SOCKET BRAZING RING (PIPE) FIRST END. 13 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.