PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

30310-1Valve,restrictor Check

Grindley Manufacturing Inc. · NSN 4820-00-917-8536 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-917-8536 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-917-8536. Primary manufacturer part number: 30310-1.
Features
  • Valve,restrictor Check — FSC 4820
  • Face to Face Distance: 1.437 INCHES IN
  • Style Designator: STRAIGHT THRU
  • 3 verified cross-references
  • Primary manufacturer: Grindley Manufacturing Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,restrictor Check, cataloged under National Stock Number 4820-00-917-8536, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Grindley Manufacturing Inc.. Government technical data includes 2 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-917-8536
Primary Part Number30310-1
Item NameValve,restrictor Check
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGrindley Manufacturing Inc.
StatusACTIVE
Face to Face Distance1.437 INCHES IN
Style DesignatorSTRAIGHT THRU
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5950-00-076-600810106121 INTERCHANGEABLE
Transformer,power
Us Army Aviation and Missile Command
6135-00-473-6279 INTERCHANGEABLE
Battery,nonrechargeable
4720-00-588-4474325649 INTERCHANGEABLE
Hose,metallic
Mitsubishi Caterpillar Forklift America, Inc
5935-00-938-478830310-1 INTERCHANGEABLE
Connector,electrica
Microwave Devices Inc
5999-01-341-368430310-1 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5950-01-352-5874935A837-2 INTERCHANGEABLE
Transformer,current
Hamilton Sundstrand Corporation
6105-01-423-0123303101 INTERCHANGEABLE
Motor,alternating Current
Exabyte Corporation
Cross-Reference Index
Part NumberManufacturer
30310-1 PRIMARY Grindley Manufacturing Inc. (USA)
30310-1 Conair Inc (USA)
30310-1 Air Shunt Instruments, Inc. Dba Air Shunt Instruments (USA)
Related Parts
5950-00-076-6008INTERCHANGEABLE
TRANSFORMER,POWER
10106121
6135-00-473-6279INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
4720-00-588-4474INTERCHANGEABLE
HOSE,METALLIC
325649
5935-00-938-4788INTERCHANGEABLE
CONNECTOR,ELECTRICA
30310-1
5999-01-341-3684INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
30310-1
5950-01-352-5874INTERCHANGEABLE
TRANSFORMER,CURRENT
935A837-2
6105-01-423-0123INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
303101

Frequently Asked Questions

What is NSN 4820-00-917-8536?

NSN 4820-00-917-8536 is a Valve,restrictor Check, manufactured by Grindley Manufacturing Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-917-8536?

NSN 4820-00-917-8536 has 3 cross-referenced part numbers: 30310-1 (Grindley Manufacturing Inc.), 30310-1 (Conair Inc), 30310-1 (Air Shunt Instruments, Inc. Dba Air Shunt Instruments).

What NSN replaces 4820-00-917-8536?

There are 7 known substitutes for 4820-00-917-8536: 5950-00-076-6008, 6135-00-473-6279, 4720-00-588-4474 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 30310-1?

Key specifications for 30310-1: Face to Face Distance: 1.437 INCHES IN; Style Designator: STRAIGHT THRU. 2 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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