The Reducer,tube, cataloged under National Stock Number 4730-00-204-0774, 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 Northrop Grumman Innovation Systems Llc Div Ngis. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-00-204-0774 |
| Primary Part Number | 225872 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Northrop Grumman Innovation Systems Llc Div Ngis |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE (TUBE) ALL ENDS |
| Nominal Overall Length | 1.460 INCHES IN |
| Criticality Code Justification | MDCL AND THSD |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Material Document and Classification | AMS4120 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Outside Diameter Tube Accommodated | 0.391 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES SECOND END IN |
| Nominal Thread Size | 0.875 INCHES FIRST END IN |
| Seat Angle | 25.0 DEGREES FIRST END |
| Seat Angle | 30.0 DEGREES SECOND END |
| Surface Treatment | ANODIZE OVERALL |
| Thread Class | 2A FIRST END A |
| Thread Class | 3A SECOND END A |
| Thread Quantity Per Inch | 14 FIRST END |
| Material | ALUMINUM ALLOY OVERALL |
| Thread Series Designator | UNS FIRST END |
| Thread Series Designator | UNF SECOND 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 225872 PRIMARY | Northrop Grumman Innovation Systems Llc Div Ngis (USA) |
| 225872 | Parts Life Inc (USA) |
| 225872 PRIMARY | Precision Speed Manufacturing, Llc (USA) |
| 225872 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 225872 | 5/9 Secondary reference Alliant Techsystems Inc |
| 225872 | 5/9 Secondary reference Turbo Power & Marine System Inc Sub of United Technologies Corp |
| 225872 | 5/9 Secondary reference Production Services Corp the |
| 225872 | 5/9 Secondary reference Cooper Industries Inc Cooper Petroleum Equipment Div Sunnyvale Operation |
NSN 4730-00-204-0774 is a Reducer,tube, manufactured by Northrop Grumman Innovation Systems Llc Div Ngis, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-204-0774 has 4 manufacturer part numbers on file: 225872 (Northrop Grumman Innovation Systems Llc Div Ngis), 225872 (Parts Life Inc), 225872 (Precision Speed Manufacturing, Llc), 225872 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
1 possible match (shared part number, not a government interchangeability claim): 5985-00-868-3224. Verify interchangeability with system specifications before substitution.
Key specifications for 225872: Connection Style: INVERTED FLARE (TUBE) ALL ENDS; Nominal Overall Length: 1.460 INCHES IN; Criticality Code Justification: MDCL AND THSD; Connection Type: THREADED EXTERNAL TUBE ALL ENDS. 19 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.