PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RC-20-SA-6ARam,hydraulic

Ram-Pac International Inc. · NSN 4320-00-031-1508 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-031-1508 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-031-1508. Primary manufacturer part number: RC-20-SA-6A.
Features
  • Ram,hydraulic — FSC 4320
  • Screw Thread Series Designator: IPS
  • Carrying Handle: NOT INCLUDED
  • Plunger Diameter: 2.250 INCHES NOMINAL IN
  • Screw Thread Diameter: 0.375 INCHES NOMINAL IN
  • Extended Height: 16.312 INCHES NOMINAL IN
  • Overall Diameter: 3.375 INCHES NOMINAL IN
  • Screw Thread Quantity Per Inch: 18.000
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ram,hydraulic, cataloged under National Stock Number 4320-00-031-1508, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Ram-Pac International Inc.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-031-1508
Primary Part NumberRC-20-SA-6A
Item NameRam,hydraulic
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerRam-Pac International Inc.
StatusCANCELLED
Screw Thread Series DesignatorIPS
Carrying HandleNOT INCLUDED
Plunger Diameter2.250 INCHES NOMINAL IN
Screw Thread Diameter0.375 INCHES NOMINAL IN
Extended Height16.312 INCHES NOMINAL IN
Overall Diameter3.375 INCHES NOMINAL IN
Screw Thread Quantity Per Inch18.000
Capacity20.0 TONS
Retracted Height11.312 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
2990-00-122-065811007 INTERCHANGEABLE
Cap Assembly,protective,muffler-
Gleason Corp
5940-00-432-266098F5886 INTERCHANGEABLE
Terminal,quick Disconnect
Newark Corporation Dba Newark, an Avnet Company
7490-00-920-147353505-8 INTERCHANGEABLE
Type,8
Pitney Bowes Inc.
5962-01-110-7277UA78MGU1C INTERCHANGEABLE
Microcircuit,linear
Fairchild Semiconductor Corp
5136-01-727-351265740 INTERCHANGEABLE
Die,thread Cutting
Tapco Cutting Tools Inc
Cross-Reference Index
Part NumberManufacturer
RC-256 Enerpac (FRA)
CSR-2011 Ram-Pac International Inc. (USA)
RC-251 Enerpac Tool Group Corp (USA)
RC-256 Enerpac Tool Group Corp (USA)
RC-250 Applied Power Inc Power Packer (USA)
535058 Naval Group Site D'angouleme-Ruelle (FRA)
RC-20-SA-6A PRIMARY Ram-Pac International Inc. (USA)
R251 Applied Power Inc Power Packer (USA)
65740 Applied Power Inc Power Packer (USA)
65740 Blackhawk Automotive Inc (USA)
EOE100 Applied Power Inc Power Packer (USA)
RC256 Applied Power Inc Power Packer (USA)
65740 Mcneil Ohio Corp (USA)
RC-256 Enerpac France SAS (FRA)
Related Parts
2990-00-122-0658INTERCHANGEABLE
CAP ASSEMBLY,PROTECTIVE,MUFFLER-
11007
5940-00-432-2660INTERCHANGEABLE
TERMINAL,QUICK DISCONNECT
98F5886
7490-00-920-1473INTERCHANGEABLE
TYPE,8
53505-8
5962-01-110-7277INTERCHANGEABLE
MICROCIRCUIT,LINEAR
UA78MGU1C
5136-01-727-3512INTERCHANGEABLE
DIE,THREAD CUTTING
65740

Frequently Asked Questions

What is NSN 4320-00-031-1508?

NSN 4320-00-031-1508 is a Ram,hydraulic, manufactured by Ram-Pac International Inc., classified under FSC 4320 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4320-00-031-1508?

NSN 4320-00-031-1508 has 14 cross-referenced part numbers: RC-256 (Enerpac), CSR-2011 (Ram-Pac International Inc.), RC-251 (Enerpac Tool Group Corp), RC-256 (Enerpac Tool Group Corp), RC-250 (Applied Power Inc Power Packer) and 9 more.

What NSN replaces 4320-00-031-1508?

There are 5 known substitutes for 4320-00-031-1508: 2990-00-122-0658, 5940-00-432-2660, 7490-00-920-1473 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RC-20-SA-6A?

Key specifications for RC-20-SA-6A: Screw Thread Series Designator: IPS; Carrying Handle: NOT INCLUDED; Plunger Diameter: 2.250 INCHES NOMINAL IN; Screw Thread Diameter: 0.375 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-031-1508 still in active supply?

NSN 4320-00-031-1508 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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