PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

U-1/2-BPneumatic Muffler,exhaust-Intake

Festo Corporation · NSN 4330-01-572-4778 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-01-572-4778 — this item is cataloged by the U.S. Government under National Stock Number 4330-01-572-4778. Primary manufacturer part number: U-1/2-B.
Features
  • Pneumatic Muffler,exhaust-Intake — FSC 4330
  • Inlet Connection Quantity: 1
  • Material: ALUMINUM LOCATION NOT OTHERWISE SPECIFIED
  • Inlet Connection Type: THREADED SINGLE INLET
  • Operating Position: UNIVERSAL
  • Overall Diameter: 28.0 MILLIMETERS NOMINAL MM
  • Inlet Projection Length: 9.0 MILLIMETERS NOMINAL SINGLE INLET MM
  • Body Shape: ROUND
Applications
  • Applications requiring Aluminum Location Not Otherwise Specified construction
General Description

The Pneumatic Muffler,exhaust-Intake, cataloged under National Stock Number 4330-01-572-4778, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Festo Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN4330-01-572-4778
Primary Part NumberU-1/2-B
Item NamePneumatic Muffler,exhaust-Intake
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerFesto Corporation
StatusACTIVE
Inlet Connection Quantity1
MaterialALUMINUM LOCATION NOT OTHERWISE SPECIFIED
Inlet Connection TypeTHREADED SINGLE INLET
Operating PositionUNIVERSAL
Overall Diameter28.0 MILLIMETERS NOMINAL MM
Inlet Projection Length9.0 MILLIMETERS NOMINAL SINGLE INLET MM
Body ShapeROUND
Muffler DesignSTRAIGHT THROUGH W/BAFFLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5315-00-010-86583B5316 INTERCHANGEABLE
Pin,cotter
Caterpillar Inc Div Caterpillar Defense
5950-00-087-4038792-402952 INTERCHANGEABLE
Transformer,power
Viasys Respiratory Care Inc. Dba Biosys Healthcare
5330-00-141-490914560A INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
9540-00-263-0691 INTERCHANGEABLE
Angle,structural
4730-00-278-457568-4-4 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Brass Craft Mfg Co Sub of Masco Corp
8335-01-345-44716844 INTERCHANGEABLE
Insoles,footwear
Alimed, Inc. Dba Alimed Inc
4730-01-377-74136844 INTERCHANGEABLE
Clamp,hose
Epicor Industries Inc Ideal Div
4820-01-443-1916684-4 INTERCHANGEABLE
Valve,pneumatic Tank
Milton Industries, Inc
Cross-Reference Index
Part NumberManufacturer
U-1/2-B Festo Corporation (USA)
6844 Festo Corporation (USA)
Related Parts
5315-00-010-8658INTERCHANGEABLE
PIN,COTTER
3B5316
5950-00-087-4038INTERCHANGEABLE
TRANSFORMER,POWER
792-402952
5330-00-141-4909INTERCHANGEABLE
GASKET
14560A
9540-00-263-0691INTERCHANGEABLE
ANGLE,STRUCTURAL
4730-00-278-4575INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
68-4-4
8335-01-345-4471INTERCHANGEABLE
INSOLES,FOOTWEAR
6844
4730-01-377-7413INTERCHANGEABLE
CLAMP,HOSE
6844
4820-01-443-1916INTERCHANGEABLE
VALVE,PNEUMATIC TANK
684-4

Frequently Asked Questions

What is NSN 4330-01-572-4778?

NSN 4330-01-572-4778 is a Pneumatic Muffler,exhaust-Intake, manufactured by Festo Corporation, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-01-572-4778?

NSN 4330-01-572-4778 has 2 cross-referenced part numbers: U-1/2-B (Festo Corporation), 6844 (Festo Corporation).

What NSN replaces 4330-01-572-4778?

There are 8 known substitutes for 4330-01-572-4778: 5315-00-010-8658, 5950-00-087-4038, 5330-00-141-4909 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of U-1/2-B?

Key specifications for U-1/2-B: End Item Identification: 4820-01-571-8545 AND 4820-01-571-9485 SOLENOID VALVES; NEW CONSTRUCTION LCS1; Overall Length: 116.5 MILLIMETERS NOMINAL MM; Inlet Connection Quantity: 1; Material: ALUMINUM LOCATION NOT OTHERWISE SPECIFIED. 12 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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