The Adapter,straight,flange to Hose, cataloged under National Stock Number 4730-01-656-6871, 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 Nott Company. Government technical data includes 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-656-6871 |
| Primary Part Number | 4181857 |
| Item Name | Adapter,straight,flange to Hose |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Nott Company |
| Status | ACTIVE |
| Flange Shape | RECTANGULAR WITH HOLES FIRST END |
| Nominal Overall Length | 1.65 INCHES IN |
| Connection Type | UNTHREADED EXTERNAL HOSE SECOND END |
| Connection Type | FLANGE FIRST END |
| Bolt Hole Nominal Diameter | 0.24 INCHES FIRST END IN |
| Center to Center Nominal Distance Between Bolt Holes Along Width | 2.83 INCHES FIRST END IN |
| Nominal Outside Diameter | 2.95 INCHES SECOND END IN |
| Bolt Hole Quantity | 4 FIRST END |
| Center to Center Nominal Distance Between Bolt Holes Along Length | 2.83 INCHES FIRST END IN |
| 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 |
|---|---|
| 4181857 PRIMARY | Nott Company (USA) |
| Reference | Meaning |
|---|---|
| 4181857 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4730-01-656-6871 is a Adapter,straight,flange to Hose, manufactured by Nott Company, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-656-6871 has 1 manufacturer part number on file: 4181857 (Nott Company).
Key specifications for 4181857: Flange Shape: RECTANGULAR WITH HOLES FIRST END; Nominal Overall Length: 1.65 INCHES IN; Connection Type: UNTHREADED EXTERNAL HOSE SECOND END; Connection Type: FLANGE FIRST END. 9 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.