PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A3021-2Cartridge,deionizer,hydrogen Gen

Apple Scientific Inc. · NSN 6640-01-515-6875 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-515-6875 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-515-6875. Primary manufacturer part number: A3021-2.
Features
  • Cartridge,deionizer,hydrogen Gen — FSC 6640
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 1 verified cross-reference
  • Primary manufacturer: Apple Scientific Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cartridge,deionizer,hydrogen Gen, cataloged under National Stock Number 6640-01-515-6875, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Apple Scientific Inc.. Government technical data includes 2 verified specifications, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-01-515-6875
Primary Part NumberA3021-2
Item NameCartridge,deionizer,hydrogen Gen
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerApple Scientific Inc.
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5315-01-098-3637902252 INTERCHANGEABLE
Pin,tapered,plain
L3 Technologies, Inc. Div L3 Keo
5961-01-177-9149 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
A3021-2 Apple Scientific Inc. (USA)
Related Parts
5315-01-098-3637INTERCHANGEABLE
PIN,TAPERED,PLAIN
902252
5961-01-177-9149INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 6640-01-515-6875?

NSN 6640-01-515-6875 is a Cartridge,deionizer,hydrogen Gen, manufactured by Apple Scientific Inc., classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-515-6875?

NSN 6640-01-515-6875 has 1 cross-referenced part number: A3021-2 (Apple Scientific Inc.).

What NSN replaces 6640-01-515-6875?

There are 2 known substitutes for 6640-01-515-6875: 5315-01-098-3637, 5961-01-177-9149. Verify interchangeability with system specifications before substitution.

What are the specifications of A3021-2?

Key specifications for A3021-2: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 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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