PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54088Valve,expansion

Hdt Expeditionary Systems Inc · NSN 4820-01-649-3589 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-649-3589 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-649-3589. Primary manufacturer part number: 54088.
Features
  • Valve,expansion — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,expansion, cataloged under National Stock Number 4820-01-649-3589, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-649-3589
Primary Part Number54088
Item NameValve,expansion
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-01-255-25355408-3 INTERCHANGEABLE
Pin,spring
Pdi Ground Support Systems, Inc.
7045-01-351-3084 INTERCHANGEABLE
Disk,flexible
Cross-Reference Index
Part NumberManufacturer
54088 PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
5315-01-255-2535INTERCHANGEABLE
PIN,SPRING
5408-3
7045-01-351-3084INTERCHANGEABLE
DISK,FLEXIBLE

Frequently Asked Questions

What is NSN 4820-01-649-3589?

NSN 4820-01-649-3589 is a Valve,expansion, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-649-3589?

NSN 4820-01-649-3589 has 1 cross-referenced part number: 54088 (Hdt Expeditionary Systems Inc).

What NSN replaces 4820-01-649-3589?

There are 2 known substitutes for 4820-01-649-3589: 5315-01-255-2535, 7045-01-351-3084. Verify interchangeability with system specifications before substitution.

What are the specifications of 54088?

Key specifications for 54088: End Item Identification: 7360-01-556-0596; Part Name Assigned by Controlling Agency: VALVE, EXPANSION, THERMAL. 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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