PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1056-33Spacer,flexible,pipeline

Fernco Inc · NSN 4730-01-359-2957 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-359-2957 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-359-2957. Primary manufacturer part number: 1056-33.
Features
  • Spacer,flexible,pipeline — FSC 4730
  • Style Designator: ROUND
  • Material: PLASTIC
  • Inside Diameter: 3.380 INCHES NOMINAL IN
  • Fabrication Method: MOLDED
  • 3 verified cross-references
  • Primary manufacturer: Fernco Inc
Applications
  • Applications requiring Plastic construction
General Description

The Spacer,flexible,pipeline, cataloged under National Stock Number 4730-01-359-2957, 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 Fernco Inc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, 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
NSN4730-01-359-2957
Primary Part Number1056-33
Item NameSpacer,flexible,pipeline
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFernco Inc
StatusACTIVE
Style DesignatorROUND
MaterialPLASTIC
Inside Diameter3.380 INCHES NOMINAL IN
Fabrication MethodMOLDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5305-00-018-1766105633 INTERCHANGEABLE
Screw,cap,hexagon Head
Garwood/feller Inc Garwood Winch Div
3010-00-089-224445621 INTERCHANGEABLE
Gearcase-Motor
Superior Motion Controls, Inc. Dba Superior Motion Controls
5945-00-164-639345621 INTERCHANGEABLE
Solenoid,electrical
Lourdes Industries, Inc.
5110-00-221-1075 INTERCHANGEABLE
Chisel,blacksmith's
4820-00-245-7808 INTERCHANGEABLE
Valve,linear,directional Control
3120-00-853-6141105633 INTERCHANGEABLE
Bushing,sleeve
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
5133-01-443-630945621 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
3010-01-444-6525 INTERCHANGEABLE
Transmission,mechanical,nonvehic
Cross-Reference Index
Part NumberManufacturer
426712 Avtron Aerospace Inc (USA)
45621 Electro Impulse Laboratory Inc Dba Electro Impulse Inc (USA)
1056-33 PRIMARY Fernco Inc (USA)
Related Parts
5305-00-018-1766INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
105633
3010-00-089-2244INTERCHANGEABLE
GEARCASE-MOTOR
45621
5945-00-164-6393INTERCHANGEABLE
SOLENOID,ELECTRICAL
45621
5110-00-221-1075INTERCHANGEABLE
CHISEL,BLACKSMITH'S
4820-00-245-7808INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
3120-00-853-6141INTERCHANGEABLE
BUSHING,SLEEVE
105633
5133-01-443-6309INTERCHANGEABLE
DRILL,TWIST
45621
3010-01-444-6525INTERCHANGEABLE
TRANSMISSION,MECHANICAL,NONVEHIC

Frequently Asked Questions

What is NSN 4730-01-359-2957?

NSN 4730-01-359-2957 is a Spacer,flexible,pipeline, manufactured by Fernco Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-359-2957?

NSN 4730-01-359-2957 has 3 cross-referenced part numbers: 426712 (Avtron Aerospace Inc), 45621 (Electro Impulse Laboratory Inc Dba Electro Impulse Inc), 1056-33 (Fernco Inc).

What NSN replaces 4730-01-359-2957?

There are 8 known substitutes for 4730-01-359-2957: 5305-00-018-1766, 3010-00-089-2244, 5945-00-164-6393 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1056-33?

Key specifications for 1056-33: Style Designator: ROUND; Material: PLASTIC; Inside Diameter: 3.380 INCHES NOMINAL IN; Fabrication Method: MOLDED. 4 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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