PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2A-4429Lock,valve Spring Retainer

Caterpillar Inc Div Caterpillar Defense · NSN 2805-00-288-3650 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-288-3650 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-288-3650. Primary manufacturer part number: 2A-4429.
Features
  • Lock,valve Spring Retainer — FSC 2805
  • 9 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Lock,valve Spring Retainer, cataloged under National Stock Number 2805-00-288-3650, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 9 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameLock,valve Spring Retainer
FSC / FSG2805 — No Item Name Available (FSG 28)
ManufacturersIndustrial Parts Depot, Llc Dba Ipd (CAGE 55883); Oshkosh Corp (CAGE 45152); Oshkosh Defense Llc (CAGE 75Q65); Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Mcquay-Norris Inc Oem Div an Skf Industries Co (CAGE 76255)
Technical Specifications
ParameterValue
NSN2805-00-288-3650
Primary Part Number2A-4429
Item NameLock,valve Spring Retainer
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
2805-00-356-1166R118 INTERCHANGEABLE
Lock,valve Spring Retainer
Eaton Corp Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
IPD2A4429 Industrial Parts Depot, Llc Dba Ipd (USA)
17KP439 Oshkosh Corp (USA)
17KP439 Oshkosh Defense Llc (USA)
2A-4429 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
VK87 Mcquay-Norris Inc Oem Div an Skf Industries Co
9CA276 Oshkosh Corp (USA)
2A4429 Caterpillar Tractor Co Ltd (GBR)
2A4429 Reliance Comm/tec Corp Lorain Products Div (USA)
5CA136 Oshkosh Corp (USA)
Related Parts
2805-00-356-1166INTERCHANGEABLE
LOCK,VALVE SPRING RETAINER
R118

Frequently Asked Questions

What is NSN 2805-00-288-3650?

NSN 2805-00-288-3650 is a Lock,valve Spring Retainer, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-288-3650?

NSN 2805-00-288-3650 has 9 cross-referenced part numbers: IPD2A4429 (Industrial Parts Depot, Llc Dba Ipd), 17KP439 (Oshkosh Corp), 17KP439 (Oshkosh Defense Llc), 2A-4429 (Caterpillar Inc Div Caterpillar Defense), VK87 (Mcquay-Norris Inc Oem Div an Skf Industries Co) and 4 more.

What NSN replaces 2805-00-288-3650?

There is 1 known substitute for 2805-00-288-3650: 2805-00-356-1166. Verify interchangeability with system specifications before substitution.

Is NSN 2805-00-288-3650 still in active supply?

NSN 2805-00-288-3650 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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