PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

44615Cylinder,reciprocating Compresso

Hdt Expeditionary Systems Inc · NSN 4310-00-045-3778 · FSC 4310 · No Item Name Available
Verified by PartsTable
NSN 4310-00-045-3778 — this item is cataloged by the U.S. Government under National Stock Number 4310-00-045-3778. Primary manufacturer part number: 44615.
Features
  • Cylinder,reciprocating Compresso — FSC 4310
  • Overall Diameter: 6.000 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Hdt Expeditionary Systems Inc
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Cylinder,reciprocating Compresso, cataloged under National Stock Number 4310-00-045-3778, is classified within Federal Supply Class 4310 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Hdt Expeditionary Systems Inc. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4310-00-045-3778
Primary Part Number44615
Item NameCylinder,reciprocating Compresso
FSC / FSG4310 / 43 — No Item Name Available
ManufacturerHdt Expeditionary Systems Inc
StatusACTIVE
Overall Diameter6.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6610-00-140-171944615 INTERCHANGEABLE
Indicator,attitude
Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems
4820-00-144-4973N44615 INTERCHANGEABLE
Guide,valve Stem
Leslie Controls, Inc. Dba Leslie Controls Inc
5950-00-325-83427534200P0001 INTERCHANGEABLE
Reactor
Lockheed Martin Corp Naval Electronics & Surveillance Systems
3455-01-197-397341752 INTERCHANGEABLE
Cutter,milling,end
Kennametal Inc. Div Kennametal Industrial Products Group
6515-01-699-115244615 INTERCHANGEABLE
Bumper,medical Equipment
Kci Usa, Inc. Dba 3m Medical Solutions
Cross-Reference Index
Part NumberManufacturer
44615 Drs Environmental Systems Inc (USA)
44615 Davey Compressor Co Div of Keco Industries Inc (USA)
44615 PRIMARY Hdt Expeditionary Systems Inc (USA)
Related Parts
6610-00-140-1719INTERCHANGEABLE
INDICATOR,ATTITUDE
44615
4820-00-144-4973INTERCHANGEABLE
GUIDE,VALVE STEM
N44615
5950-00-325-8342INTERCHANGEABLE
REACTOR
7534200P0001
3455-01-197-3973INTERCHANGEABLE
CUTTER,MILLING,END
41752
6515-01-699-1152INTERCHANGEABLE
BUMPER,MEDICAL EQUIPMENT
44615

Frequently Asked Questions

What is NSN 4310-00-045-3778?

NSN 4310-00-045-3778 is a Cylinder,reciprocating Compresso, manufactured by Hdt Expeditionary Systems Inc, classified under FSC 4310 (No Item Name Available). Status: active.

What are the part numbers for NSN 4310-00-045-3778?

NSN 4310-00-045-3778 has 3 cross-referenced part numbers: 44615 (Drs Environmental Systems Inc), 44615 (Davey Compressor Co Div of Keco Industries Inc), 44615 (Hdt Expeditionary Systems Inc).

What NSN replaces 4310-00-045-3778?

There are 5 known substitutes for 4310-00-045-3778: 6610-00-140-1719, 4820-00-144-4973, 5950-00-325-8342 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 44615?

Key specifications for 44615: Overall Diameter: 6.000 INCHES NOMINAL IN; Overall Length: 16.125 INCHES NOMINAL IN. 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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