NSN 4730-00-700-9391 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-700-9391. Manufacturer of record part number: HRB561.
Also searched as4730-00-700-9391 ·
4730007009391 ·
NIIN 007009391 ·
00-700-9391 ·
FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 27996 · HRB561 · 7009391
4730-00-700-9391 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Packing Nut — FSC 4730
Length to Shoulder: 0.625 INCHES NOMINAL IN
Hole or Slot Quantity: 4
Largest Inside Diameter: 0.650 INCHES NOMINAL IN
Thread Length: 0.625 INCHES NOMINAL IN
Smallest Outside Diameter: 0.741 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Thread Direction: RIGHT-HAND
Casehardening Indicator: NOT CASEHARDENED
Identification
NSN: 4730-00-700-9391
NIIN: 007009391
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: HRB561
Manufacturer: Heil Environmental Industries
General Description
The Packing Nut, cataloged under National Stock Number 4730-00-700-9391, 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 Heil Environmental Industries. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Reference documents
Reference
Meaning
HRB561
5/9Secondary reference
E O Habhegger Company Inc Div E. O. Habhegger Co., Inc.
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 4730-00-700-9391?
NSN 4730-00-700-9391 is a Packing Nut, manufactured by Heil Environmental Industries, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-00-700-9391?
NSN 4730-00-700-9391 has 2 manufacturer part numbers on file: HRB561 (Heil Environmental Industries), 7009391 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of HRB561?
Key specifications for HRB561: Length to Shoulder: 0.625 INCHES NOMINAL IN; Hole or Slot Quantity: 4; Largest Inside Diameter: 0.650 INCHES NOMINAL IN; Thread Length: 0.625 INCHES NOMINAL IN. 15 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-700-9391 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.