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NSN 4730-01-345-8907Government record, cited

Coupling Assembly, Tube4730-01-345-8907

NSN 4730-01-345-8907 · NIIN 013458907 · Part number 6511188
O T S I · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 05825
Government record, cited
NSN 4730-01-345-8907 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-345-8907. Manufacturer of record part number: 6511188.
Also searched as  4730-01-345-8907 · 4730013458907 · NIIN 013458907 · 01-345-8907 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 05825 · 6511188
Nearby stock numbers  ·
Features
  • Coupling Assembly,tube — FSC 4730
  • Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
  • Nominal Thread Size: 0.562 INCHES SECOND END IN
  • Thread Class: 2A SECOND END A
  • Material: STEEL ELBOW
  • Thread Series Designator: UNF SECOND END
  • 2 manufacturer part numbers on file
Identification
  • NSN: 4730-01-345-8907
  • NIIN: 013458907
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 6511188
  • Manufacturer: O T S I
General Description

The Coupling Assembly,tube, cataloged under National Stock Number 4730-01-345-8907, 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 O T S I. Government technical data includes 6 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. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-345-8907
Primary Part Number6511188
Item NameCoupling Assembly,tube
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerO T S I
StatusACTIVE
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Nominal Thread Size0.562 INCHES SECOND END IN
Thread Class2A SECOND END A
MaterialSTEEL ELBOW
Thread Series DesignatorUNF SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL B — Remove Demilitarization Key Points
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
6511188 Naval Sea Systems Command (USA)
6511188 PRIMARY O T S I (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 4730-01-345-8907?

NSN 4730-01-345-8907 is a Coupling Assembly,tube, manufactured by O T S I, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-345-8907?

NSN 4730-01-345-8907 has 2 manufacturer part numbers on file: 6511188 (Naval Sea Systems Command), 6511188 (O T S I).

What are the specifications of 6511188?

Key specifications for 6511188: Connection Style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END; Connection Type: THREADED EXTERNAL BOSS SECOND END; Nominal Thread Size: 0.562 INCHES SECOND END IN; Thread Class: 2A SECOND END A. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-345-8907 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.

What is the DEMIL code for NSN 4730-01-345-8907?

NSN 4730-01-345-8907 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.

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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