The Adapter,straight,flange to Tube, cataloged under National Stock Number 4730-01-421-0135, 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 Rolls-Royce Corporation. 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 | 4730-01-421-0135 |
| Primary Part Number | 6898808 |
| Item Name | Adapter,straight,flange to Tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Flange Shape | OVAL WITH HOLES ALL ENDS |
| Flange Face Design | PLAIN ALL ENDS |
| Nominal Length | 1.550 INCHES ALL ENDS IN |
| Bolt Circle Nominal Diameter | 1.750 INCHES ALL ENDS IN |
| Connection Type | FLANGE ALL ENDS |
| Bolt Hole Nominal Diameter | 0.225 INCHES ALL ENDS IN |
| Bolt Hole Quantity | 2 ALL ENDS |
| Nominal Width | 0.994 INCHES ALL ENDS IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Nominal Thickness | 0.068 INCHES ALL ENDS IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4730-01-421-0135 is a Adapter,straight,flange to Tube, manufactured by Rolls-Royce Corporation, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-421-0135 has 2 manufacturer part numbers on file: 6898808 (Rolls-Royce Corporation), 6898808 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 6898808: Flange Shape: OVAL WITH HOLES ALL ENDS; Flange Face Design: PLAIN ALL ENDS; Nominal Length: 1.550 INCHES ALL ENDS IN; Bolt Circle Nominal Diameter: 1.750 INCHES ALL ENDS IN. 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.