4730-00-178-0080 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Packing Nut — FSC 4730
Material Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Surface Treatment Document and Classification: MIL-P-16232 TYPE Z CLASS 4A MIL SPEC SINGLE TREATMENT RESPONSE A
Thread Length: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
Thread Direction: RIGHT-HAND
Casehardening Indicator: NOT CASEHARDENED
Thread Size: 0.500-28
Screw Thread Series Designator: UNIFIED NATIONAL JOINT FINE (UNJF)
Identification
NSN: 4730-00-178-0080
NIIN: 001780080
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
General Description
The Packing Nut, cataloged under National Stock Number 4730-00-178-0080, 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 11 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
Surface Treatment Document and Classification
MIL-P-16232 TYPE Z CLASS 4A MIL SPEC SINGLE TREATMENT RESPONSE A
Thread Length
0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN
Thread Direction
RIGHT-HAND
Casehardening Indicator
NOT CASEHARDENED
Thread Size
0.500-28
Screw Thread Series Designator
UNIFIED NATIONAL JOINT FINE (UNJF)
Surface Treatment
PHOSPHATE ZINC
Thread Class
3B
Screw Thread Location
INTERNAL
Material
STEEL COMP 4140
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
5015T07P01
3/2Design control — primary reference
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 4730-00-178-0080?
NSN 4730-00-178-0080 is a Packing Nut, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What are the specifications of 4730-00-178-0080?
Key specifications for 4730-00-178-0080: Material Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM; Surface Treatment Document and Classification: MIL-P-16232 TYPE Z CLASS 4A MIL SPEC SINGLE TREATMENT RESPONSE A; Thread Length: 0.218 INCHES MINIMUM AND 0.222 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 11 specifications are documented in the U.S. Government catalog.
Is NSN 4730-00-178-0080 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.