PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

33100-D-360Tailpiece,union

Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc · NSN 4730-01-265-0453 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-265-0453 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-265-0453. Primary manufacturer part number: 33100-D-360.
Features
  • Tailpiece,union — FSC 4730
  • End Connection Type: WELDED
  • Material: COPPER ALLOY
  • Nominal Pipe Size Designation: 0.500 INCHES IN
  • 6 verified cross-references
  • Primary manufacturer: Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
Applications
  • Applications requiring Copper Alloy construction
General Description

The Tailpiece,union, cataloged under National Stock Number 4730-01-265-0453, 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 Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-265-0453
Primary Part Number33100-D-360
Item NameTailpiece,union
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc
StatusACTIVE
End Connection TypeWELDED
MaterialCOPPER ALLOY
Nominal Pipe Size Designation0.500 INCHES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5330-00-470-5088803-7063850-X5XX-8 INTERCHANGEABLE
Packing,preformed
Naval Sea Systems Command
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
4730-01-723-1711803-7063850-C843-5 INTERCHANGEABLE
Nut,union
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
33100-D-360 PRIMARY Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA)
803-7063850 Naval Sea Systems Command (USA)
803-7063850-C3X3-2 PRIMARY Naval Sea Systems Command (USA)
803-4384536-3XXX-23 Naval Ship Systems Command (USA)
4384536 Naval Ship Systems Command (USA)
803-4384536-3XX-23 Naval Ship Systems Command (USA)
Related Parts
5330-00-470-5088INTERCHANGEABLE
PACKING,PREFORMED
803-7063850-X5XX-8
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
4730-01-723-1711INTERCHANGEABLE
NUT,UNION
803-7063850-C843-5

Frequently Asked Questions

What is NSN 4730-01-265-0453?

NSN 4730-01-265-0453 is a Tailpiece,union, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-265-0453?

NSN 4730-01-265-0453 has 6 cross-referenced part numbers: 33100-D-360 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 803-7063850 (Naval Sea Systems Command), 803-7063850-C3X3-2 (Naval Sea Systems Command), 803-4384536-3XXX-23 (Naval Ship Systems Command), 4384536 (Naval Ship Systems Command) and 1 more.

What NSN replaces 4730-01-265-0453?

There are 6 known substitutes for 4730-01-265-0453: 5330-00-470-5088, 4820-01-494-3441, 5325-01-540-7268 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 33100-D-360?

Key specifications for 33100-D-360: End Connection Type: WELDED; Material: COPPER ALLOY; Nominal Pipe Size Designation: 0.500 INCHES IN. 3 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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