NSN 4730-01-070-6866 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-070-6866. Manufacturer of record part number: SECO 7N18X.
4730-01-070-6866 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Seal,conical,flared Tube Fitting — FSC 4730
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: 1.375 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN
Body Length: 0.060 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN
Casehardening Indicator: NOT CASEHARDENED
Identification
NSN: 4730-01-070-6866
NIIN: 010706866
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: SECO 7N18X
Manufacturer: Seco Seals, Inc
General Description
The Seal,conical,flared Tube Fitting, cataloged under National Stock Number 4730-01-070-6866, 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 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
NSN 4730-01-070-6866 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.
What part numbers are listed for NSN 4730-01-070-6866?
NSN 4730-01-070-6866 has 2 manufacturer part numbers on file: SECO 7N18X (Seco Seals, Inc), DY90-N-18 (Del Aerospace Inc Dba Del Aerospace Inc).
What NSN replaces 4730-01-070-6866?
5 possible matches (shared part number, not a government interchangeability claim): 4730-01-070-7407, 4730-01-070-7408, 4730-01-070-7963. Verify interchangeability with system specifications before substitution.
What are the specifications of SECO 7N18X?
Key specifications for SECO 7N18X: 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.
Is NSN 4730-01-070-6866 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
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.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.