PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21302 FIND 73Restrictor,fluid Flow

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 4730-01-417-6213 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-417-6213 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-417-6213. Primary manufacturer part number: 21302 FIND 73.
Features
  • Restrictor,fluid Flow — FSC 4730
  • Length: 0.560 INCHES NOMINAL IN
  • Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED
  • Criticality Code Justification: FEAT
  • Orifice Diameter: 0.004 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING
  • Design Type: TUBULAR
  • Outside Diameter: 0.188 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Restrictor,fluid Flow, cataloged under National Stock Number 4730-01-417-6213, 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 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-417-6213
Primary Part Number21302 FIND 73
Item NameRestrictor,fluid Flow
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
Length0.560 INCHES NOMINAL IN
Thread ProvisionUNTHREADED LOCATION NOT OTHERWISE SPECIFIED
Criticality Code JustificationFEAT
Orifice Diameter0.004 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING
Design TypeTUBULAR
Outside Diameter0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-023-839921302 INTERCHANGEABLE
Clamp,c
Wilton Corp Wilton Tool Div
5330-00-290-032410253LPD INTERCHANGEABLE
Seal,plain Encased
Parker-Hannifin Corporation Dba Pneutronics Div Engineered Polymer Systems
5331-00-298-619754A50C116-3 INTERCHANGEABLE
O-Ring
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6685-00-851-45772050W-BT INTERCHANGEABLE
Thermometer,self-Indicating
Kessler Thermometer Corp Dba Kessler Thermometers Corp
5945-00-856-2404 INTERCHANGEABLE
Relay,electromagnetic
4810-01-417-239721302-001 INTERCHANGEABLE
Valve,linear,directional Control
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4810-01-417-281621302-1001-1 INTERCHANGEABLE
Piston,valve
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
3040-01-417-845921302-1002-1 INTERCHANGEABLE
Guide,piston Rod
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4820-01-439-533821302 INTERCHANGEABLE
Valve,ball
Cooper Surgical
5310-01-540-597121302 INTERCHANGEABLE
Washer,flat
Bae Systems Land & Armaments L.p.
Cross-Reference Index
Part NumberManufacturer
21302 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21302 FIND 76 Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
21302 FIND 73 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
JEDA1875240H PRIMARY The Lee Co Dba the Lee Co (USA)
Related Parts
5120-00-023-8399INTERCHANGEABLE
CLAMP,C
21302
5330-00-290-0324INTERCHANGEABLE
SEAL,PLAIN ENCASED
10253LPD
5331-00-298-6197INTERCHANGEABLE
O-RING
54A50C116-3
6685-00-851-4577INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
2050W-BT
5945-00-856-2404INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4810-01-417-2397INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21302-001
4810-01-417-2816INTERCHANGEABLE
PISTON,VALVE
21302-1001-1
3040-01-417-8459INTERCHANGEABLE
GUIDE,PISTON ROD
21302-1002-1
4820-01-439-5338INTERCHANGEABLE
VALVE,BALL
21302
5310-01-540-5971INTERCHANGEABLE
WASHER,FLAT
21302
1615-01-585-6724INTERCHANGEABLE
HUB,ROTOR,HELICOPTER
21302
6515-01-592-5803INTERCHANGEABLE
BATTERY PACK,RECHARGEABLE
TA-UB1

Frequently Asked Questions

What is NSN 4730-01-417-6213?

NSN 4730-01-417-6213 is a Restrictor,fluid Flow, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-417-6213?

NSN 4730-01-417-6213 has 4 cross-referenced part numbers: 21302 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21302 FIND 76 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), 21302 FIND 73 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace), JEDA1875240H (The Lee Co Dba the Lee Co).

What NSN replaces 4730-01-417-6213?

There are 12 known substitutes for 4730-01-417-6213: 5120-00-023-8399, 5330-00-290-0324, 5331-00-298-6197 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21302 FIND 73?

Key specifications for 21302 FIND 73: Length: 0.560 INCHES NOMINAL IN; Special Features: WEAPON SYSTEM ESSENTIAL; Thread Provision: UNTHREADED LOCATION NOT OTHERWISE SPECIFIED; Criticality Code Justification: FEAT. 9 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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