PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21239Cylinder Assembly,actuating,line

Mark Industries · NSN 2530-01-265-3249 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-01-265-3249 — this item is cataloged by the U.S. Government under National Stock Number 2530-01-265-3249. Primary manufacturer part number: 21239.
Features
  • Cylinder Assembly,actuating,line — FSC 2530
  • 2 verified cross-references
  • Primary manufacturer: Mark Industries
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cylinder Assembly,actuating,line, cataloged under National Stock Number 2530-01-265-3249, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Mark Industries. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameCylinder Assembly,actuating,line
FSC / FSG2530 — No Item Name Available (FSG 25)
ManufacturersMark Industries (CAGE 60178)
Technical Specifications
ParameterValue
NSN2530-01-265-3249
Primary Part Number21239
Item NameCylinder Assembly,actuating,line
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerMark Industries
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5920-00-142-48421034-4-20 INTERCHANGEABLE
Fuse,cartridge
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
4320-00-163-107399121663 INTERCHANGEABLE
Pump,rotary
Alfa Laval Inc
5110-00-255-6579 INTERCHANGEABLE
Reamer,hand
5330-00-297-733121663 INTERCHANGEABLE
Gasket
Arvinmeritor Inc
2530-00-426-83682-1663 INTERCHANGEABLE
Adjuster,slack,brake
Terex Usa, Llc Dba Terex Equipment Services
5935-00-563-1430 INTERCHANGEABLE
Connector,plug,electrical
5305-01-188-049221663 INTERCHANGEABLE
Screw Assy. Vent
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5330-01-228-618221239 INTERCHANGEABLE
Gasket
Mirion Technologies (canberra), Inc.
6550-01-243-3707 INTERCHANGEABLE
Culture Medium,trypticase Soy BL
6620-01-310-6653NW21663 INTERCHANGEABLE
Gage Unit,engine
Tld Wollard Llc
Cross-Reference Index
Part NumberManufacturer
21239 PRIMARY Mark Industries (USA)
21663 Mark Industries (USA)
Related Parts
5920-00-142-4842INTERCHANGEABLE
FUSE,CARTRIDGE
1034-4-20
4320-00-163-1073INTERCHANGEABLE
PUMP,ROTARY
99121663
5110-00-255-6579INTERCHANGEABLE
REAMER,HAND
5330-00-297-7331INTERCHANGEABLE
GASKET
21663
2530-00-426-8368INTERCHANGEABLE
ADJUSTER,SLACK,BRAKE
2-1663
5935-00-563-1430INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5305-01-188-0492INTERCHANGEABLE
SCREW ASSY. VENT
21663
5330-01-228-6182INTERCHANGEABLE
GASKET
21239
6550-01-243-3707INTERCHANGEABLE
CULTURE MEDIUM,TRYPTICASE SOY BL
6620-01-310-6653INTERCHANGEABLE
GAGE UNIT,ENGINE
NW21663
6550-01-374-1402INTERCHANGEABLE
NITRATE REAGENT
R21239

Frequently Asked Questions

What is NSN 2530-01-265-3249?

NSN 2530-01-265-3249 is a Cylinder Assembly,actuating,line, manufactured by Mark Industries, classified under FSC 2530 (No Item Name Available). Status: active.

What are the part numbers for NSN 2530-01-265-3249?

NSN 2530-01-265-3249 has 2 cross-referenced part numbers: 21239 (Mark Industries), 21663 (Mark Industries).

What NSN replaces 2530-01-265-3249?

There are 11 known substitutes for 2530-01-265-3249: 5920-00-142-4842, 4320-00-163-1073, 5110-00-255-6579 and 8 more. Verify interchangeability with system specifications before substitution.

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