The Reducer,pipe, cataloged under National Stock Number 4730-01-460-2531, 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 Sps Technologies, Llc Dba Airdrome Precision Components. Government technical data includes 10 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 | 4730-01-460-2531 |
| Primary Part Number | AP3903K0402 |
| Item Name | Reducer,pipe |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sps Technologies, Llc Dba Airdrome Precision Components |
| Status | ACTIVE |
| Nominal Pipe Size Accommodated | 0.405 INCHES SECOND END IN |
| Nominal Overall Length | 0.850 INCHES IN |
| Connection Type | THREADED INTERNAL PIPE SECOND END |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE XXS FIRST END |
| Pipe Wall Thickness Designation for Which Designed | SCHEDULE XXS SECOND END |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | NPTF FIRST 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 |
|---|---|
| AP3903J0402 | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| AP3903K0402 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
NSN 4730-01-460-2531 is a Reducer,pipe, manufactured by Sps Technologies, Llc Dba Airdrome Precision Components, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-460-2531 has 2 manufacturer part numbers on file: AP3903J0402 (Sps Technologies, Llc Dba Airdrome Precision Components), AP3903K0402 (Sps Technologies, Llc Dba Airdrome Precision Components).
Key specifications for AP3903K0402: Nominal Pipe Size Accommodated: 0.405 INCHES SECOND END IN; Nominal Overall Length: 0.850 INCHES IN; Connection Type: THREADED INTERNAL PIPE SECOND END; Connection Type: THREADED EXTERNAL PIPE FIRST END. 10 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.