PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S28921Restrictor,fluid Flow

Sss Clutch Co, Inc · NSN 4730-01-343-3450 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-343-3450 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-343-3450. Primary manufacturer part number: S28921.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Design Type: TUBULAR
  • 3 verified cross-references
  • Primary manufacturer: Sss Clutch Co, Inc
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-343-3450, 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 Sss Clutch Co, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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
NSN4730-01-343-3450
Primary Part NumberS28921
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSss Clutch Co, Inc
StatusACTIVE
Design TypeTUBULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4720-01-343-0863S29676 INTERCHANGEABLE
Hose Assembly,nonmetallic
Sss Clutch Co, Inc
4720-01-343-184329722 INTERCHANGEABLE
Hose Assembly,nonmetallic
Sss Clutch Co, Inc
4720-01-343-1844SL15019 ITEM 132 INTERCHANGEABLE
Hose Assembly,nonmetallic
Sss Clutch Co, Inc
4720-01-343-184529852 INTERCHANGEABLE
Hose Assembly,nonmetallic
Sss Clutch Co, Inc
3040-01-343-5687S28878 INTERCHANGEABLE
Piston,linear Actuating Cylinder
Sss Clutch Co, Inc
3040-01-343-8675SL29460 INTERCHANGEABLE
Bracket,eye,rotating Shaft
Sss Clutch Co, Inc
Cross-Reference Index
Part NumberManufacturer
SL15019 ITEM 26 Sss Clutch Co, Inc (USA)
S28921 PRIMARY Sss Clutch Co, Inc (USA)
SL15019 Sss Clutch Co, Inc (USA)
Related Parts
4720-01-343-0863INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
S29676
4720-01-343-1843INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
29722
4720-01-343-1844INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
SL15019 ITEM 132
4720-01-343-1845INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
29852
3040-01-343-5687INTERCHANGEABLE
PISTON,LINEAR ACTUATING CYLINDER
S28878
3040-01-343-8675INTERCHANGEABLE
BRACKET,EYE,ROTATING SHAFT
SL29460

Frequently Asked Questions

What is NSN 4730-01-343-3450?

NSN 4730-01-343-3450 is a Restrictor,fluid Flow, manufactured by Sss Clutch Co, Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-343-3450?

NSN 4730-01-343-3450 has 3 cross-referenced part numbers: SL15019 ITEM 26 (Sss Clutch Co, Inc), S28921 (Sss Clutch Co, Inc), SL15019 (Sss Clutch Co, Inc).

What NSN replaces 4730-01-343-3450?

There are 6 known substitutes for 4730-01-343-3450: 4720-01-343-0863, 4720-01-343-1843, 4720-01-343-1844 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S28921?

Key specifications for S28921: Design Type: TUBULAR. 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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