PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21756Valve,regulating,fluid Pressure

Itw Gse Inc. · NSN 4820-01-517-0499 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-517-0499 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-517-0499. Primary manufacturer part number: 21756.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Itw Gse Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-517-0499, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Itw Gse Inc.. This item has 2 commercial cross-references from 2 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
NSN4820-01-517-0499
Primary Part Number21756
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerItw Gse Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
1680-00-110-2287PM21756 INTERCHANGEABLE
Housing,grip Assy
Mason Electric Co. Dba Mason Controls
5950-00-220-9950 INTERCHANGEABLE
Transformer,radio Frequency
5930-00-327-8472153214F1C INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5342-00-880-829721756 INTERCHANGEABLE
Hinge,peg
Norris Dispenser Company
5975-00-897-9959 INTERCHANGEABLE
Mounting
5110-01-489-5797 INTERCHANGEABLE
Cutter,boiler Tube
5120-01-491-891521756 INTERCHANGEABLE
Socket,socket Wrench
Amron International Inc
Cross-Reference Index
Part NumberManufacturer
21756 Itw Gse Inc. (USA)
21756 Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems (USA)
Related Parts
1680-00-110-2287INTERCHANGEABLE
HOUSING,GRIP ASSY
PM21756
5950-00-220-9950INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5930-00-327-8472INTERCHANGEABLE
SWITCH,ROTARY
153214F1C
5342-00-880-8297INTERCHANGEABLE
HINGE,PEG
21756
5975-00-897-9959INTERCHANGEABLE
MOUNTING
5110-01-489-5797INTERCHANGEABLE
CUTTER,BOILER TUBE
5120-01-491-8915INTERCHANGEABLE
SOCKET,SOCKET WRENCH
21756

Frequently Asked Questions

What is NSN 4820-01-517-0499?

NSN 4820-01-517-0499 is a Valve,regulating,fluid Pressure, manufactured by Itw Gse Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-517-0499?

NSN 4820-01-517-0499 has 2 cross-referenced part numbers: 21756 (Itw Gse Inc.), 21756 (Gse Holdings Inc. Dba Itw Military Gse Div Hobart Ground Systems).

What NSN replaces 4820-01-517-0499?

There are 7 known substitutes for 4820-01-517-0499: 1680-00-110-2287, 5950-00-220-9950, 5930-00-327-8472 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21756?

Key specifications for 21756: End Item Identification: F/A-22 RAPTOR; Part Name Assigned by Controlling Agency: VALVE,REGULATING. 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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