PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

251-15Nozzle and Swirler

Aqua-Chem, Inc. Dba Aqua-Chem Inc · NSN 4530-00-480-7549 · FSC 4530 · No Item Name Available
Verified by PartsTable
NSN 4530-00-480-7549 — this item is cataloged by the U.S. Government under National Stock Number 4530-00-480-7549. Primary manufacturer part number: 251-15.
Features
  • Nozzle and Swirler — FSC 4530
  • General Characteristics Item Description: NOZZLE,NICKEL COPPER ALLOY,SWIRLER,BRASS,1.400 IN. O/A LG AND 1.755 IN. OD,EXT THD 1-5/16-12 UN FOR NOZZLE,1.365 IN.O/A LG,AND 1.185 IN.OD,FOR SWIRLER IN
  • 2 verified cross-references
  • Primary manufacturer: Aqua-Chem, Inc. Dba Aqua-Chem Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Nozzle and Swirler, cataloged under National Stock Number 4530-00-480-7549, is classified within Federal Supply Class 4530 (No Item Name Available) of the Plumbing, Heating, and Waste Disposal group. The primary manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN4530-00-480-7549
Primary Part Number251-15
Item NameNozzle and Swirler
FSC / FSG4530 / 45 — No Item Name Available
ManufacturerAqua-Chem, Inc. Dba Aqua-Chem Inc
StatusACTIVE
General Characteristics Item DescriptionNOZZLE,NICKEL COPPER ALLOY,SWIRLER,BRASS,1.400 IN. O/A LG AND 1.755 IN. OD,EXT THD 1-5/16-12 UN FOR NOZZLE,1.365 IN.O/A LG,AND 1.185 IN.OD,FOR SWIRLER IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5133-00-228-1330 INTERCHANGEABLE
Drill,twist
1005-00-437-4764 INTERCHANGEABLE
Safety,gun Grip
5310-00-723-2737 INTERCHANGEABLE
Nut,plain,hexagon
6685-01-206-8926 INTERCHANGEABLE
Indicator,temperature,card
4820-01-255-779725115 INTERCHANGEABLE
Valve,ball
Tyco Fire Products Lp
4720-01-537-9836 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
251-15 Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA)
251-15 Aqua-Chem Inc Cleaver-Brooks Div (USA)
Related Parts
5133-00-228-1330INTERCHANGEABLE
DRILL,TWIST
1005-00-437-4764INTERCHANGEABLE
SAFETY,GUN GRIP
5310-00-723-2737INTERCHANGEABLE
NUT,PLAIN,HEXAGON
6685-01-206-8926INTERCHANGEABLE
INDICATOR,TEMPERATURE,CARD
4820-01-255-7797INTERCHANGEABLE
VALVE,BALL
25115
4720-01-537-9836INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 4530-00-480-7549?

NSN 4530-00-480-7549 is a Nozzle and Swirler, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4530 (No Item Name Available). Status: active.

What are the part numbers for NSN 4530-00-480-7549?

NSN 4530-00-480-7549 has 2 cross-referenced part numbers: 251-15 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 251-15 (Aqua-Chem Inc Cleaver-Brooks Div).

What NSN replaces 4530-00-480-7549?

There are 6 known substitutes for 4530-00-480-7549: 5133-00-228-1330, 1005-00-437-4764, 5310-00-723-2737 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 251-15?

Key specifications for 251-15: General Characteristics Item Description: NOZZLE,NICKEL COPPER ALLOY,SWIRLER,BRASS,1.400 IN. O/A LG AND 1.755 IN. OD,EXT THD 1-5/16-12 UN FOR NOZZLE,1.365 IN.O/A LG,AND 1.185 IN.OD,FOR SWIRLER IN. 1 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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