PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51950Module,pressurization

Eaton Aerospace Llc Dba Eaton Aerospace Jackson · NSN 4330-01-021-0015 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-01-021-0015 — this item is cataloged by the U.S. Government under National Stock Number 4330-01-021-0015. Primary manufacturer part number: 51950.
Features
  • Module,pressurization — FSC 4330
  • General Characteristics Item Description: CONSISTS OF BLEED VALVE 1,CAP 2,CHECK VALVE 2,FILTER ELEMENT 2,MANIFOLD ASSEMBLY 1,PLATE 1,PLUG 1,REGULATOR 1,SPRING 1
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Module,pressurization, cataloged under National Stock Number 4330-01-021-0015, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Eaton Aerospace Llc Dba Eaton Aerospace Jackson. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4330-01-021-0015
Primary Part Number51950
Item NameModule,pressurization
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Eaton Aerospace Jackson
StatusACTIVE
General Characteristics Item DescriptionCONSISTS OF BLEED VALVE 1,CAP 2,CHECK VALVE 2,FILTER ELEMENT 2,MANIFOLD ASSEMBLY 1,PLATE 1,PLUG 1,REGULATOR 1,SPRING 1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
2805-00-354-082701950 INTERCHANGEABLE
Guide,valve Stem
Safeguard Powertech Systems
4820-00-381-320151950 INTERCHANGEABLE
Plate,diaphragm
Grove Valve Operations
5305-00-575-711851950 INTERCHANGEABLE
Screw,special
Naval Inventory Control Point Mechanicsburg
5895-00-671-944951950 INTERCHANGEABLE
Tuner,radio Frequency
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5330-01-087-703651950 INTERCHANGEABLE
Packing,preformed
Waterous Company
1340-01-443-547752105 INTERCHANGEABLE
Rocket and Launcher,83 Millimete
Nammo Defense Systems Inc. Dba Nammo Defense Systems Inc
Cross-Reference Index
Part NumberManufacturer
51950 PRIMARY Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
Related Parts
2805-00-354-0827INTERCHANGEABLE
GUIDE,VALVE STEM
01950
4820-00-381-3201INTERCHANGEABLE
PLATE,DIAPHRAGM
51950
5305-00-575-7118INTERCHANGEABLE
SCREW,SPECIAL
51950
5895-00-671-9449INTERCHANGEABLE
TUNER,RADIO FREQUENCY
51950
5330-01-087-7036INTERCHANGEABLE
PACKING,PREFORMED
51950
1340-01-443-5477INTERCHANGEABLE
ROCKET AND LAUNCHER,83 MILLIMETE
52105

Frequently Asked Questions

What is NSN 4330-01-021-0015?

NSN 4330-01-021-0015 is a Module,pressurization, manufactured by Eaton Aerospace Llc Dba Eaton Aerospace Jackson, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-01-021-0015?

NSN 4330-01-021-0015 has 1 cross-referenced part number: 51950 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson).

What NSN replaces 4330-01-021-0015?

There are 6 known substitutes for 4330-01-021-0015: 2805-00-354-0827, 4820-00-381-3201, 5305-00-575-7118 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51950?

Key specifications for 51950: General Characteristics Item Description: CONSISTS OF BLEED VALVE 1,CAP 2,CHECK VALVE 2,FILTER ELEMENT 2,MANIFOLD ASSEMBLY 1,PLATE 1,PLUG 1,REGULATOR 1,SPRING 1. 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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