The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-01-073-1622, 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 Del Aerospace Inc Dba Del Aerospace Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-073-1622 |
| Primary Part Number | DY90-N-32 |
| Item Name | Seal,conical,flared Tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Del Aerospace Inc Dba Del Aerospace Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 |
| Style Designator | SEAL |
| Material Document and Classification | AMS 5553 ASSN STD SINGLE MATERIAL RESPONSE |
| Wall Thickness | 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN |
| Outside Diameter | 2.375 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN |
| Body Length | 0.110 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | NICKEL ALLOY 201 |
| Hose/tube Outside Diameter for Which Designed | 2.000 INCHES NOMINAL 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 |
|---|---|
| SECO 7N32 | Seco Seals, Inc (USA) |
| DY90-N-32 PRIMARY | Del Aerospace Inc Dba Del Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| 7N32 | 5/9 Secondary reference Seco Seals, Inc |
| SECO7N32X | 5/9 Secondary reference Seco Seals, Inc |
| SECO 7N | 5/9 Secondary reference Seco Seals, Inc |
| DY90 | D/9 Drawing number reference only Del Aerospace Inc Dba Del Aerospace Inc |
NSN 4730-01-073-1622 is a Seal,conical,flared Tube Fitting, manufactured by Del Aerospace Inc Dba Del Aerospace Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-073-1622 has 2 manufacturer part numbers on file: SECO 7N32 (Seco Seals, Inc), DY90-N-32 (Del Aerospace Inc Dba Del Aerospace Inc).
Key specifications for DY90-N-32: Seat Angle in Deg: 37.0; Style Designator: SEAL; Material Document and Classification: AMS 5553 ASSN STD SINGLE MATERIAL RESPONSE; Wall Thickness: 0.009 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN. 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.