PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21549Reducer,boss

R.w. Beckett Corporation Div Beckett Energy Systems · NSN 4730-01-396-5063 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-396-5063 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-396-5063. Primary manufacturer part number: 21549.
Features
  • Reducer,boss — FSC 4730
  • Reducer Type: CONCENTRIC
  • 1 verified cross-reference
  • Primary manufacturer: R.w. Beckett Corporation Div Beckett Energy Systems
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Reducer,boss, cataloged under National Stock Number 4730-01-396-5063, 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 R.w. Beckett Corporation Div Beckett Energy Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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.

Technical Specifications
ParameterValue
NSN4730-01-396-5063
Primary Part Number21549
Item NameReducer,boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerR.w. Beckett Corporation Div Beckett Energy Systems
StatusACTIVE
Reducer TypeCONCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6610-00-939-261621549 INTERCHANGEABLE
Shaft Assy,rocking
Aerosonic Llc
4820-01-107-709421751 INTERCHANGEABLE
Valve,calibrated Flow
Kold-Ban International Ltd Div Kbi
4730-01-198-845721549 INTERCHANGEABLE
Trap,steam
Spirax Sarco Inc Dba Spirax Sarco
5996-01-275-283321-549 INTERCHANGEABLE
Amplifier,magnetic
Radioshack Corporation Dba Radioshack
3040-01-317-749121549-1 INTERCHANGEABLE
Gearshaft Sector,spur
Aerosonic Llc
5935-01-414-582821549 INTERCHANGEABLE
Connector,receptacle,electrical
Viavi Solutionsllc
Cross-Reference Index
Part NumberManufacturer
21549 R.w. Beckett Corporation Div Beckett Energy Systems (USA)
Related Parts
6610-00-939-2616INTERCHANGEABLE
SHAFT ASSY,ROCKING
21549
4820-01-107-7094INTERCHANGEABLE
VALVE,CALIBRATED FLOW
21751
4730-01-198-8457INTERCHANGEABLE
TRAP,STEAM
21549
5996-01-275-2833INTERCHANGEABLE
AMPLIFIER,MAGNETIC
21-549
3040-01-317-7491INTERCHANGEABLE
GEARSHAFT SECTOR,SPUR
21549-1
5935-01-414-5828INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
21549

Frequently Asked Questions

What is NSN 4730-01-396-5063?

NSN 4730-01-396-5063 is a Reducer,boss, manufactured by R.w. Beckett Corporation Div Beckett Energy Systems, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-396-5063?

NSN 4730-01-396-5063 has 1 cross-referenced part number: 21549 (R.w. Beckett Corporation Div Beckett Energy Systems).

What NSN replaces 4730-01-396-5063?

There are 6 known substitutes for 4730-01-396-5063: 6610-00-939-2616, 4820-01-107-7094, 4730-01-198-8457 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21549?

Key specifications for 21549: End Item Identification: 3895-01-384-5307; Reducer Type: CONCENTRIC. 2 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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