The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-01-477-9851, 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 Seco Seals, Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4730-01-477-9851 |
| Primary Part Number | SECO27N16 |
| Item Name | Seal,conical,flared Tube Fitting |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Seco Seals, Inc |
| Status | ACTIVE |
| Seat Angle in Deg | 37.0 |
| Style Designator | SEAL |
| Material Document and Classification | AMS 5553, 201 ASSN STD SINGLE MATERIAL RESPONSE |
| Wall Thickness | 0.010 INCHES NOMINAL IN |
| Outside Diameter | 1.183 INCHES NOMINAL IN |
| Body Length | 0.125 INCHES NOMINAL IN |
| Casehardening Indicator | CASEHARDENED |
| Material | NICKEL ALLOY 201 |
| Hose/tube Outside Diameter for Which Designed | 1.000 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 |
|---|---|
| SECO27N16 PRIMARY | Seco Seals, Inc (USA) |
| Reference | Meaning |
|---|---|
| ST2286-16 | 5/9 Secondary reference Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
NSN 4730-01-477-9851 is a Seal,conical,flared Tube Fitting, manufactured by Seco Seals, Inc, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-477-9851 has 1 manufacturer part number on file: SECO27N16 (Seco Seals, Inc).
Key specifications for SECO27N16: Seat Angle in Deg: 37.0; Style Designator: SEAL; Material Document and Classification: AMS 5553, 201 ASSN STD SINGLE MATERIAL RESPONSE; Overall Length: 0.775 INCHES NOMINAL 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.