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NSN 4730-01-629-4701Government record, cited

Locknut, Tube Fitting4730-01-629-4701

NSN 4730-01-629-4701 · NIIN 016294701 · Part number FS0306-20
Brennan Industries · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 5E240
Government record, cited
NSN 4730-01-629-4701 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-629-4701. Manufacturer of record part number: FS0306-20.
Also searched as  4730-01-629-4701 · 4730016294701 · NIIN 016294701 · 01-629-4701 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 5E240 · FS0306-20
Nearby stock numbers  ·
Features
  • Locknut,tube Fitting — FSC 4730
  • Width Across Flats: 2.000 INCHES NOMINAL IN
  • Thread Series: UN
  • Thread Direction: RIGHT-HAND
  • Nominal Thread Size: 1.688 INCHES IN
  • Nut Height: 0.410 INCHES NOMINAL IN
  • Nut Style: TUBE FITTING LOCKNUT
  • Thread Quantity Per Inch: 12
Identification
  • NSN: 4730-01-629-4701
  • NIIN: 016294701
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: FS0306-20
  • Manufacturer: Brennan Industries
General Description

The Locknut,tube Fitting, cataloged under National Stock Number 4730-01-629-4701, 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 Brennan Industries. 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
NSN4730-01-629-4701
Primary Part NumberFS0306-20
Item NameLocknut,tube Fitting
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerBrennan Industries
StatusACTIVE
Width Across Flats2.000 INCHES NOMINAL IN
Thread SeriesUN
Thread DirectionRIGHT-HAND
Nominal Thread Size1.688 INCHES IN
Nut Height0.410 INCHES NOMINAL IN
Nut StyleTUBE FITTING LOCKNUT
Thread Quantity Per Inch12
MaterialSTEEL OVERALL
Nominal Tube Outside Diameter1.250 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
FS0306-20 PRIMARY Brennan Industries (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 4730-01-629-4701?

NSN 4730-01-629-4701 is a Locknut,tube Fitting, manufactured by Brennan Industries, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-629-4701?

NSN 4730-01-629-4701 has 1 manufacturer part number on file: FS0306-20 (Brennan Industries).

What are the specifications of FS0306-20?

Key specifications for FS0306-20: Width Across Flats: 2.000 INCHES NOMINAL IN; Thread Series: UN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.688 INCHES IN. 9 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-629-4701 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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