The Reducer,tube, cataloged under National Stock Number 4730-00-804-4987, 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 Cummins Inc.. Government technical data includes 13 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-804-4987 |
| Primary Part Number | 7081700 |
| Item Name | Reducer,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Connection Style | INVERTED FLARE (TUBE) ALL ENDS |
| Nominal Overall Length | 1.440 INCHES IN |
| Connection Type | THREADED EXTERNAL TUBE ALL ENDS |
| Nominal Outside Diameter Tube Accommodated | 0.313 INCHES SECOND END IN |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Thread Size | 0.500 INCHES SECOND END IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 45.0 DEGREES FIRST END |
| Seat Angle | 42.0 DEGREES SECOND END |
| Thread Class | 2A ALL ENDS A |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF ALL ENDS |
| 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 |
|---|---|
| 7081700 | Cummins Inc. (USA) |
| Reference | Meaning |
|---|---|
| 101-01088 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| 101-01088 | 3/9 Design control — primary reference Dana Corp Weatherhead Div |
| 100-01821 | 5/9 Secondary reference Danfoss Power Solutions II, Llc |
| 100-01821 | 5/9 Secondary reference Dana Corp Weatherhead Div |
| 70817 | 5/9 Secondary reference Cummins Inc. |
| 2207-799 | 5/2 Secondary reference U.S. Government activity |
NSN 4730-00-804-4987 is a Reducer,tube, manufactured by Cummins Inc., classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-804-4987 has 1 manufacturer part number on file: 7081700 (Cummins Inc.).
4 possible matches (shared part number, not a government interchangeability claim): 4730-00-817-6578, 5935-01-185-2259, 5210-01-434-9850. Verify interchangeability with system specifications before substitution.
Key specifications for 7081700: Connection Style: INVERTED FLARE (TUBE) ALL ENDS; Nominal Overall Length: 1.440 INCHES IN; Connection Type: THREADED EXTERNAL TUBE ALL ENDS; Nominal Outside Diameter Tube Accommodated: 0.313 INCHES SECOND END IN. 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.