PartsTable TECHNICAL DATA SHEET
NSN 4730-01-399-0850Government record, cited

Flange, Pipe, Swivel Retaining4730-01-399-0850

NSN 4730-01-399-0850 · NIIN 013990850
FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings
Government record, cited
Also searched as  4730-01-399-0850 · 4730013990850 · NIIN 013990850 · 01-399-0850 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings
Nearby stock numbers  ·
Features
  • Flange,pipe,swivel Retaining — FSC 4730
  • Face Seating Surface Condition: MACHINED
  • Surface Treatment Document and Classification: AMS2400 ASSN STD SINGLE TREATMENT RESPONSE
  • Flange Section Style: PLAIN FACE
  • Style Designator: SQUARE, ONE BOLT HOLE CIRCLE
  • Bolt Hole Diameter: 0.281 INCHES NOMINAL IN
  • Material Document and Classification: AMS8740 ASSN STD SINGLE MATERIAL RESPONSE
  • Bolt Hole Quantity: 4
Identification
  • NSN: 4730-01-399-0850
  • NIIN: 013990850
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description

The Flange,pipe,swivel Retaining, cataloged under National Stock Number 4730-01-399-0850, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-399-0850
Item NameFlange,pipe,swivel Retaining
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
StatusACTIVE
Face Seating Surface ConditionMACHINED
Surface Treatment Document and ClassificationAMS2400 ASSN STD SINGLE TREATMENT RESPONSE
Flange Section StylePLAIN FACE
Style DesignatorSQUARE, ONE BOLT HOLE CIRCLE
Bolt Hole Diameter0.281 INCHES NOMINAL IN
Material Document and ClassificationAMS8740 ASSN STD SINGLE MATERIAL RESPONSE
Bolt Hole Quantity4
Bolt Circle Diameter1.994 INCHES NOMINAL IN
Surface TreatmentCADMIUM
Flange Width0.185 INCHES NOMINAL IN
MaterialSTEEL COMP 8740
Thickness0.185 INCHES NOMINAL 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
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
ReferenceMeaning
MS9084-24 2/2 Government specification standardization
U.S. Government activity
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 4730-01-399-0850?

NSN 4730-01-399-0850 is a Flange,pipe,swivel Retaining, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What are the specifications of 4730-01-399-0850?

Key specifications for 4730-01-399-0850: Face Seating Surface Condition: MACHINED; Surface Treatment Document and Classification: AMS2400 ASSN STD SINGLE TREATMENT RESPONSE; Flange Section Style: PLAIN FACE; Style Designator: SQUARE, ONE BOLT HOLE CIRCLE. 12 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-399-0850 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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