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NSN 4730-01-599-3260Government record, cited

Nut, Union4730-01-599-3260

NSN 4730-01-599-3260 · NIIN 015993260 · Part number 803-7657203ITEM148
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 4730-01-599-3260 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-599-3260. Manufacturer of record part number: 803-7657203ITEM148.
Also searched as  4730-01-599-3260 · 4730015993260 · NIIN 015993260 · 01-599-3260 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 803-7657203ITEM148
Nearby stock numbers  ·
Features
  • Nut,union — FSC 4730
  • Width Across Flats: 4.063 INCHES NOMINAL IN
  • Thread Series: UNS
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 0.190 INCHES IN
  • Nut Height: 1.160 INCHES NOMINAL IN
  • Thread Quantity Per Inch: 28
  • 1 manufacturer part number on file
Identification
  • NSN: 4730-01-599-3260
  • NIIN: 015993260
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 803-7657203ITEM148
  • Manufacturer: Naval Sea Systems Command
General Description

The Nut,union, cataloged under National Stock Number 4730-01-599-3260, 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 6 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
NSN4730-01-599-3260
Primary Part Number803-7657203ITEM148
Item NameNut,union
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNaval Sea Systems Command
StatusACTIVE
Width Across Flats4.063 INCHES NOMINAL IN
Thread SeriesUNS
Thread DirectionRIGHT-HAND
Nominal Thread Size0.190 INCHES IN
Nut Height1.160 INCHES NOMINAL IN
Thread Quantity Per Inch28
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
803-7657203ITEM148 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 4730-01-599-3260?

NSN 4730-01-599-3260 is a Nut,union, 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 4730-01-599-3260?

NSN 4730-01-599-3260 has 1 manufacturer part number on file: 803-7657203ITEM148 (Naval Sea Systems Command).

What are the specifications of 803-7657203ITEM148?

Key specifications for 803-7657203ITEM148: Width Across Flats: 4.063 INCHES NOMINAL IN; Thread Series: UNS; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.190 INCHES IN. 6 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-599-3260 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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