PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37-543Servovalve Assy

Hydro-Aire Aerospace Corp · NSN 1650-01-645-8079 · FSC 1650 · No Item Name Available
Verified by PartsTable
NSN 1650-01-645-8079 — this item is cataloged by the U.S. Government under National Stock Number 1650-01-645-8079. Primary manufacturer part number: 37-543.
Features
  • Servovalve Assy — FSC 1650
  • 1 verified cross-reference
  • Primary manufacturer: Hydro-Aire Aerospace Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Servovalve Assy, cataloged under National Stock Number 1650-01-645-8079, is classified within Federal Supply Class 1650 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Hydro-Aire Aerospace Corp. This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN1650-01-645-8079
Primary Part Number37-543
Item NameServovalve Assy
FSC / FSG1650 / 16 — No Item Name Available
ManufacturerHydro-Aire Aerospace Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5330-00-136-5073 INTERCHANGEABLE
Packing,preformed
5305-00-269-3213MS90725-62 INTERCHANGEABLE
Screw,cap,hexagon Head
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
4820-01-032-5600037543 INTERCHANGEABLE
Ring Guide,safety Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
5930-01-122-6542SN-BSE5GMV-6-32V1.0-A1NU-ZRP-3U INTERCHANGEABLE
Switch,flow
Universal Flow Monitors Inc
5330-01-268-2618 INTERCHANGEABLE
Gasket
5305-01-398-139337543 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5310-01-416-653837543 INTERCHANGEABLE
Nut,plain,hexagon
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
37-543 PRIMARY Hydro-Aire Aerospace Corp (USA)
Related Parts
5330-00-136-5073INTERCHANGEABLE
PACKING,PREFORMED
5305-00-269-3213INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
MS90725-62
4820-01-032-5600INTERCHANGEABLE
RING GUIDE,SAFETY VALVE
037543
5930-01-122-6542INTERCHANGEABLE
SWITCH,FLOW
SN-BSE5GMV-6-32V1.0-A1NU-ZRP-3U
5330-01-268-2618INTERCHANGEABLE
GASKET
5305-01-398-1393INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
37543
5310-01-416-6538INTERCHANGEABLE
NUT,PLAIN,HEXAGON
37543

Frequently Asked Questions

What is NSN 1650-01-645-8079?

NSN 1650-01-645-8079 is a Servovalve Assy, manufactured by Hydro-Aire Aerospace Corp, classified under FSC 1650 (No Item Name Available). Status: active.

What are the part numbers for NSN 1650-01-645-8079?

NSN 1650-01-645-8079 has 1 cross-referenced part number: 37-543 (Hydro-Aire Aerospace Corp).

What NSN replaces 1650-01-645-8079?

There are 7 known substitutes for 1650-01-645-8079: 5330-00-136-5073, 5305-00-269-3213, 4820-01-032-5600 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37-543?

Key specifications for 37-543: End Item Identification: B52-AIRCRAFT. 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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