PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31817Packing Nut

Evoqua Water Technologies Llc · NSN 4730-01-441-6495 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-441-6495 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-441-6495. Primary manufacturer part number: 31817.
Features
  • Packing Nut — FSC 4730
  • Thread Size: 2-12
  • Material: COPPER ALLOY
  • Thread Class: 2A A
  • Screw Thread Series Designator: UN
  • 3 verified cross-references
  • Primary manufacturer: Evoqua Water Technologies Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy construction
General Description

The Packing Nut, cataloged under National Stock Number 4730-01-441-6495, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Evoqua Water Technologies Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-441-6495
Primary Part Number31817
Item NamePacking Nut
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEvoqua Water Technologies Llc
StatusACTIVE
Thread Size2-12
MaterialCOPPER ALLOY
Thread Class2A A
Screw Thread Series DesignatorUN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5935-00-259-3880UG447U INTERCHANGEABLE
Connector,receptacle,electrical
Joint Electronics Type Designation System
3455-00-268-9506B842 INTERCHANGEABLE
Cutter,milling,screw Slotting
F & D Tool Co Inc
5935-00-665-6099 INTERCHANGEABLE
Connector,receptacle,electrical
4320-00-709-6108331821 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
Dover Pumps & Process Solutions Segment Inc Dba Blackmer Div Blackmer
5110-01-304-07825110-01-304-0782 INTERCHANGEABLE
Saw,hand,metal Cutting
General Services Administration Federal Supply Service
5120-01-348-02415120013480241 INTERCHANGEABLE
Wrench Set,spanner
General Services Administration Federal Supply Service
4730-01-441-6496W2T90484 INTERCHANGEABLE
Packing Nut
Evoqua Water Technologies Llc
5305-01-589-602612759-01038 INTERCHANGEABLE
Screw,machine
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
67818 Evoqua Water Technologies Llc (USA)
31817 PRIMARY Evoqua Water Technologies Llc (USA)
67818 SHEET 5 ITEM 9 Evoqua Water Technologies Llc (USA)
Related Parts
5935-00-259-3880INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
UG447U
3455-00-268-9506INTERCHANGEABLE
CUTTER,MILLING,SCREW SLOTTING
B842
5935-00-665-6099INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
4320-00-709-6108INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
331821
5110-01-304-0782INTERCHANGEABLE
SAW,HAND,METAL CUTTING
5110-01-304-0782
5120-01-348-0241INTERCHANGEABLE
WRENCH SET,SPANNER
5120013480241
4730-01-441-6496INTERCHANGEABLE
PACKING NUT
W2T90484
5305-01-589-6026INTERCHANGEABLE
SCREW,MACHINE
12759-01038

Frequently Asked Questions

What is NSN 4730-01-441-6495?

NSN 4730-01-441-6495 is a Packing Nut, manufactured by Evoqua Water Technologies Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-441-6495?

NSN 4730-01-441-6495 has 3 cross-referenced part numbers: 67818 (Evoqua Water Technologies Llc), 31817 (Evoqua Water Technologies Llc), 67818 SHEET 5 ITEM 9 (Evoqua Water Technologies Llc).

What NSN replaces 4730-01-441-6495?

There are 8 known substitutes for 4730-01-441-6495: 5935-00-259-3880, 3455-00-268-9506, 5935-00-665-6099 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 31817?

Key specifications for 31817: Special Features: NEXT ASSEMBLY ANODE; Thread Size: 2-12; Material: COPPER ALLOY; Thread Class: 2A A. 6 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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