NSN 4730-01-278-4091 · NIIN 012784091 · Part number 639AS6636
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 30003
Government record, cited
NSN 4730-01-278-4091 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-278-4091. Manufacturer of record part number: 639AS6636.
Also searched as4730-01-278-4091 ·
4730012784091 ·
NIIN 012784091 ·
01-278-4091 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 30003 · 639AS6636
4730-01-278-4091 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Plug,tube Repair,expanding — FSC 4730
General Characteristics Item Description: CORROSION RESISTANT STEEL PER ASTMA582,TYPE 303 OR 303A; FINISH PASSIVATE,STEEL PER QQ-P-35,TYPE 4; 0.500 INCH DIA; 0.228 INCH HEIGHT; 0.125 INCH CENTER HOLE; FURNISHED WITH; NUT,SELF LOCKING 1,SCREW 1,SEAL 1,WASHER 2 A
1 manufacturer part number on file
Manufacturer of record: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Identification
NSN: 4730-01-278-4091
NIIN: 012784091
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: 639AS6636
Manufacturer: Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
General Description
The Plug,tube Repair,expanding, cataloged under National Stock Number 4730-01-278-4091, 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 Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 1 specification, 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. Current acquisition status: Active.
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
Status
ACTIVE
General Characteristics Item Description
CORROSION RESISTANT STEEL PER ASTMA582,TYPE 303 OR 303A; FINISH PASSIVATE,STEEL PER QQ-P-35,TYPE 4; 0.500 INCH DIA; 0.228 INCH HEIGHT; 0.125 INCH CENTER HOLE; FURNISHED WITH; NUT,SELF LOCKING 1,SCREW 1,SEAL 1,WASHER 2 A
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA)
No interchangeability data on file.
Other items in FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895
4730-00-000-1895 · Item name not on file
4730-00-000-4289
4730-00-000-4289 · Item name not on file
4730-00-000-4445
4730-00-000-4445 · Item name not on file
4730-00-000-8373
4730-00-000-8373 · Item name not on file
4730-00-000-8897
4730-00-000-8897 · Item name not on file
4730-00-001-0007
4730-00-001-0007 · Item name not on file
4730-00-001-0008
COUPLING,TUBE
4730-00-001-0008
COUPLING,TUBE
Frequently Asked Questions
What is NSN 4730-01-278-4091?
NSN 4730-01-278-4091 is a Plug,tube Repair,expanding, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-278-4091?
NSN 4730-01-278-4091 has 1 manufacturer part number on file: 639AS6636 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
What are the specifications of 639AS6636?
Key specifications for 639AS6636: General Characteristics Item Description: CORROSION RESISTANT STEEL PER ASTMA582,TYPE 303 OR 303A; FINISH PASSIVATE,STEEL PER QQ-P-35,TYPE 4; 0.500 INCH DIA; 0.228 INCH HEIGHT; 0.125 INCH CENTER HOLE; FURNISHED WITH; NUT,SELF LOCKING 1,SCREW 1,SEAL 1,WASHER 2 A. 1 specification is documented in the U.S. Government catalog.
Is NSN 4730-01-278-4091 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.