PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-192Restrictor,fluid Flow

Robertshaw Controls Co Uni-Line Div · NSN 4730-01-216-9121 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-216-9121 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-216-9121. Primary manufacturer part number: 21-192.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Thread Series: UNF ALL PROVISIONS
  • Thread Size Designator: 10-32 ALL PROVISIONS
  • Thread Provision: THREADED ALL PROVISIONS
  • Thread Direction: RIGHT-HAND ALL PROVISIONS
  • Design Type: TUBULAR, HEX SHAPE
  • 2 verified cross-references
  • Primary manufacturer: Robertshaw Controls Co Uni-Line Div
Applications
  • Plumbing and fluid distribution
  • Industrial piping systems
  • Fuel and lubricant distribution
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-216-9121, 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 Robertshaw Controls Co Uni-Line Div. Government technical data includes 5 verified specifications, 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. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-216-9121
Primary Part Number21-192
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerRobertshaw Controls Co Uni-Line Div
StatusACTIVE
Thread SeriesUNF ALL PROVISIONS
Thread Size Designator10-32 ALL PROVISIONS
Thread ProvisionTHREADED ALL PROVISIONS
Thread DirectionRIGHT-HAND ALL PROVISIONS
Design TypeTUBULAR, HEX SHAPE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5915-00-461-5491101146 INTERCHANGEABLE
Filter,electrical
Aimtron Systems, Llc
5999-00-609-3131101146 INTERCHANGEABLE
Plate,electrical Shield
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5360-00-937-014521-192 INTERCHANGEABLE
Spring,special
Cmbf, Llc Dba Cmbf Llc
5305-00-958-5250101146 INTERCHANGEABLE
Screw,machine
Hillman Group, Inc., the
5930-01-144-5154D1T-A80 INTERCHANGEABLE
Switch,pressure
Barksdale, Inc
5310-01-147-400221192 INTERCHANGEABLE
Washer,lock
Industrial Technologies and Services Llc
2920-01-193-07961976049 INTERCHANGEABLE
Housing,alternator
General Motors Llc Dba General Motors Llc
3040-01-269-9576 INTERCHANGEABLE
Disk Brake Shoe
5340-01-287-0366MA-1146 INTERCHANGEABLE
Bumper
Kone Inc.
4810-01-424-541721192-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
Cross-Reference Index
Part NumberManufacturer
101146 Walker Power Systems, Inc. Dba Tiernay Turbines (USA)
21-192 PRIMARY Robertshaw Controls Co Uni-Line Div (USA)
Related Parts
5915-00-461-5491INTERCHANGEABLE
FILTER,ELECTRICAL
101146
5999-00-609-3131INTERCHANGEABLE
PLATE,ELECTRICAL SHIELD
101146
5360-00-937-0145INTERCHANGEABLE
SPRING,SPECIAL
21-192
5305-00-958-5250INTERCHANGEABLE
SCREW,MACHINE
101146
5930-01-144-5154INTERCHANGEABLE
SWITCH,PRESSURE
D1T-A80
5310-01-147-4002INTERCHANGEABLE
WASHER,LOCK
21192
2920-01-193-0796INTERCHANGEABLE
HOUSING,ALTERNATOR
1976049
3040-01-269-9576INTERCHANGEABLE
DISK BRAKE SHOE
5340-01-287-0366INTERCHANGEABLE
BUMPER
MA-1146
4810-01-424-5417INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21192-001
2540-01-718-6833INTERCHANGEABLE
COVER,FITTED,VEHICULAR CAB
21192

Frequently Asked Questions

What is NSN 4730-01-216-9121?

NSN 4730-01-216-9121 is a Restrictor,fluid Flow, manufactured by Robertshaw Controls Co Uni-Line Div, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-216-9121?

NSN 4730-01-216-9121 has 2 cross-referenced part numbers: 101146 (Walker Power Systems, Inc. Dba Tiernay Turbines), 21-192 (Robertshaw Controls Co Uni-Line Div).

What NSN replaces 4730-01-216-9121?

There are 11 known substitutes for 4730-01-216-9121: 5915-00-461-5491, 5999-00-609-3131, 5360-00-937-0145 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-192?

Key specifications for 21-192: Thread Series: UNF ALL PROVISIONS; Thread Size Designator: 10-32 ALL PROVISIONS; Thread Provision: THREADED ALL PROVISIONS; Thread Direction: RIGHT-HAND ALL PROVISIONS. 5 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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