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NSN 4730-01-326-3450Government record, cited

Nut, Tube Coupling4730-01-326-3450

NSN 4730-01-326-3450 · NIIN 013263450 · Part number 5820286
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-326-3450 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-326-3450. Manufacturer of record part number: 5820286.
Also searched as  4730-01-326-3450 · 4730013263450 · NIIN 013263450 · 01-326-3450 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 5820286
Nearby stock numbers  ·
Features
  • Nut,tube Coupling — FSC 4730
  • Thread Series: UN
  • Supplementary Features: AFTERBODY SECTION,TORPEDO MK50
  • Material Document and Classification: ASTM A-479 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.3125 INCHES IN
  • Thread Class: 3B
  • Thread Quantity Per Inch: 20
Identification
  • NSN: 4730-01-326-3450
  • NIIN: 013263450
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 5820286
  • Manufacturer: Naval Sea Systems Command
General Description

The Nut,tube Coupling, cataloged under National Stock Number 4730-01-326-3450, 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 Sea Systems Command. 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-326-3450
Primary Part Number5820286
Item NameNut,tube Coupling
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNaval Sea Systems Command
StatusACTIVE
Thread SeriesUN
Supplementary FeaturesAFTERBODY SECTION,TORPEDO MK50
Material Document and ClassificationASTM A-479 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Nominal Thread Size0.3125 INCHES IN
Thread Class3B
Thread Quantity Per Inch20
MaterialSTEEL COMP 316 OVERALL
Nominal Tube Outside Diameter0.255 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
5820286 PRIMARY Naval Sea Systems Command (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 4730-01-326-3450?

NSN 4730-01-326-3450 is a Nut,tube Coupling, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-326-3450?

NSN 4730-01-326-3450 has 1 manufacturer part number on file: 5820286 (Naval Sea Systems Command).

What are the specifications of 5820286?

Key specifications for 5820286: Thread Series: UN; Supplementary Features: AFTERBODY SECTION,TORPEDO MK50; Material Document and Classification: ASTM A-479 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-326-3450 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.
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