PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3340Ram,hydraulic

Holmatro Incorporated · NSN 4320-01-579-7961 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-579-7961 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-579-7961. Primary manufacturer part number: 3340.
Features
  • Ram,hydraulic — FSC 4320
  • 2 verified cross-references
  • Primary manufacturer: Holmatro Incorporated
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Ram,hydraulic, cataloged under National Stock Number 4320-01-579-7961, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Holmatro Incorporated. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-579-7961
Primary Part Number3340
Item NameRam,hydraulic
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerHolmatro Incorporated
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3895-00-128-2588 INTERCHANGEABLE
Roller,take-Up Craw
4810-00-146-60112192-6421-3/4 IN INTERCHANGEABLE
Valve,solenoid
Romac Industries, Inc. Dba Hays Fluid Controls Div Hays Fluid Controls Division
5330-00-189-93443340 INTERCHANGEABLE
Packing,preformed
Arrow Pneumatics Inc
5310-00-209-09013340 INTERCHANGEABLE
Washer,lock
Telemechanics Inc
2920-00-384-8957000-334-2056 INTERCHANGEABLE
Rotor,ignition Distributor
Tvh Parts Co.
4440-00-489-84033340 INTERCHANGEABLE
Humidity Alarm
Altec Air, Llc Dba Altec Llc
3030-00-528-4522M300154 INTERCHANGEABLE
Belt,v
Mgr Equipment Corp
3110-00-623-44673340 INTERCHANGEABLE
Bearing,special Pur
General Dynamics Land Systems - Canadacorporation Div General Dynamics Mission Systems
2530-00-706-95771790857 INTERCHANGEABLE
Cylinder,hydraulic Brake,wheel
Chrysler Realty Company Llc Dba Daimler Chrysler
6930-01-144-99423340 INTERCHANGEABLE
Bezel Assembly
Kearflex Engineering Company
Cross-Reference Index
Part NumberManufacturer
158.032.002 Holmatro Incorporated (USA)
3340 PRIMARY Holmatro Incorporated (USA)
Related Parts
3895-00-128-2588INTERCHANGEABLE
ROLLER,TAKE-UP CRAW
4810-00-146-6011INTERCHANGEABLE
VALVE,SOLENOID
2192-6421-3/4 IN
5330-00-189-9344INTERCHANGEABLE
PACKING,PREFORMED
3340
5310-00-209-0901INTERCHANGEABLE
WASHER,LOCK
3340
2920-00-384-8957INTERCHANGEABLE
ROTOR,IGNITION DISTRIBUTOR
000-334-2056
4440-00-489-8403INTERCHANGEABLE
HUMIDITY ALARM
3340
3030-00-528-4522INTERCHANGEABLE
BELT,V
M300154
3110-00-623-4467INTERCHANGEABLE
BEARING,SPECIAL PUR
3340
2530-00-706-9577INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,WHEEL
1790857
6930-01-144-9942INTERCHANGEABLE
BEZEL ASSEMBLY
3340
7490-01-221-3249INTERCHANGEABLE
INSERTING MACHINE,MAIL
3340
2040-01-432-6419INTERCHANGEABLE
FLAME ARRESTER,VENTILATION-EXHAU
3-340 1-1/2IN

Frequently Asked Questions

What is NSN 4320-01-579-7961?

NSN 4320-01-579-7961 is a Ram,hydraulic, manufactured by Holmatro Incorporated, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-579-7961?

NSN 4320-01-579-7961 has 2 cross-referenced part numbers: 158.032.002 (Holmatro Incorporated), 3340 (Holmatro Incorporated).

What NSN replaces 4320-01-579-7961?

There are 12 known substitutes for 4320-01-579-7961: 3895-00-128-2588, 4810-00-146-6011, 5330-00-189-9344 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3340?

Key specifications for 3340: Special Features: MAX. WORKING PRESSURE 10,500 PSI/720 BAR; SPREADING FORCE 1ST PLUNGER 49,145 LBS.; SPREADING FORCE 2ND PLUNGER 18,210 LBS.; STROKE 1ST PLUNGER 6 1/8 IN.; STROKE 2ND PLUNGER 4 7/8 IN.; MAX. LENGHT 23 IN. LBS; Part Name Assigned by Controlling Agency: TELESCOPIC RAM. 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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