PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-7063850-C843-5Nut,union

Naval Sea Systems Command · NSN 4730-01-723-1711 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-723-1711 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-723-1711. Primary manufacturer part number: 803-7063850-C843-5.
Features
  • Nut,union — FSC 4730
  • 3 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,union, cataloged under National Stock Number 4730-01-723-1711, 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 Naval Sea Systems Command. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,union
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersNaval Sea Systems Command (CAGE 53711)
Technical Specifications
ParameterValue
NSN4730-01-723-1711
Primary Part Number803-7063850-C843-5
Item NameNut,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-470-5088803-7063850-X5XX-8 INTERCHANGEABLE
Packing,preformed
Naval Sea Systems Command
4730-01-265-045333100-D-360 INTERCHANGEABLE
Tailpiece,union
Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
4820-01-494-3441803-7063850-C831 INTERCHANGEABLE
Tailpiece,valve
Naval Sea Systems Command
5325-01-540-7268803-7063850-B733-6 INTERCHANGEABLE
Ring,retaining
Naval Sea Systems Command
5325-01-542-8612803-7063850-X5XX-6 INTERCHANGEABLE
Ring,retaining
Naval Sea Systems Command
4820-01-686-1779803-7063850ASSYC143 INTERCHANGEABLE
Tailpiece,valve
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
803-7063850 ITEM 5 Naval Sea Systems Command (USA)
803-7063850-C843-5 PRIMARY Naval Sea Systems Command (USA)
803-7063850 Naval Sea Systems Command (USA)
Related Parts
5330-00-470-5088INTERCHANGEABLE
PACKING,PREFORMED
803-7063850-X5XX-8
4730-01-265-0453INTERCHANGEABLE
TAILPIECE,UNION
33100-D-360
4820-01-494-3441INTERCHANGEABLE
TAILPIECE,VALVE
803-7063850-C831
5325-01-540-7268INTERCHANGEABLE
RING,RETAINING
803-7063850-B733-6
5325-01-542-8612INTERCHANGEABLE
RING,RETAINING
803-7063850-X5XX-6
4820-01-686-1779INTERCHANGEABLE
TAILPIECE,VALVE
803-7063850ASSYC143

Frequently Asked Questions

What is NSN 4730-01-723-1711?

NSN 4730-01-723-1711 is a Nut,union, manufactured by Naval Sea Systems Command, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-723-1711?

NSN 4730-01-723-1711 has 3 cross-referenced part numbers: 803-7063850 ITEM 5 (Naval Sea Systems Command), 803-7063850-C843-5 (Naval Sea Systems Command), 803-7063850 (Naval Sea Systems Command).

What NSN replaces 4730-01-723-1711?

There are 6 known substitutes for 4730-01-723-1711: 5330-00-470-5088, 4730-01-265-0453, 4820-01-494-3441 and 3 more. Verify interchangeability with system specifications before substitution.

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