The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-01-070-7963, 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 Sps Technologies, Llc Dba Airdrome Precision Components. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-070-7963 |
| Primary Part Number | DY90-N-8 |
| Item Name | Seal,conical,flared Tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Sps Technologies, Llc Dba Airdrome Precision Components |
| 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 | 0.654 INCHES MINIMUM AND 0.659 INCHES MAXIMUM IN |
| Body Length | 0.080 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN |
| Casehardening Indicator | NOT CASEHARDENED |
| Material | NICKEL ALLOY 201 |
| Hose/tube Outside Diameter for Which Designed | 0.500 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 |
|---|---|
| DY90-N-8 PRIMARY | Sps Technologies, Llc Dba Airdrome Precision Components (USA) |
| DY90-N-8 PRIMARY | Del Aerospace Inc Dba Del Aerospace Inc (USA) |
| SECO7N8X PRIMARY | Seco Seals, Inc (USA) |
| Reference | Meaning |
|---|---|
| DY90-N-8 | 5/9 Secondary reference Air Distributors Div of Ducommun Inc |
| SECO 7N8 | 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 |
| DY90-N-8 | 5/9 Secondary reference Adams Industries Inc a Sub of Banner Industries Inc |
| DY90-N-8 | 5/9 Secondary reference International a and E Sales Inc |
| 7N8 | 5/9 Secondary reference Seco Seals, Inc |
NSN 4730-01-070-7963 is a Seal,conical,flared Tube Fitting, manufactured by Sps Technologies, Llc Dba Airdrome Precision Components, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-070-7963 has 3 manufacturer part numbers on file: DY90-N-8 (Sps Technologies, Llc Dba Airdrome Precision Components), DY90-N-8 (Del Aerospace Inc Dba Del Aerospace Inc), SECO7N8X (Seco Seals, Inc).
2 possible matches (shared part number, not a government interchangeability claim): 4730-01-070-7964, 4730-01-073-1622. Verify interchangeability with system specifications before substitution.
Key specifications for DY90-N-8: 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.