PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8587ACounter,particle

Tsi Incorporated · NSN 6635-01-582-3234 · FSC 6635 · No Item Name Available
Verified by PartsTable
NSN 6635-01-582-3234 — this item is cataloged by the U.S. Government under National Stock Number 6635-01-582-3234. Primary manufacturer part number: 8587A.
Features
  • Counter,particle — FSC 6635
  • Unpackaged Unit Weight: 13.500 POUNDS LBS
  • Accessory Components and Quantity: PHOTOMETER 1; MANUAL 1; POWER CORD 1; DRIVERS CD 1; FILTER SET 1
  • Voltage in Volts and Current Type: 115.0 AC OR 230.0 AC
  • Functional Description: USED TO TEST EFFECIENCY OF FILTERS SUCH AS USED IN PROTECTIVE MASKS
  • 1 verified cross-reference
  • Primary manufacturer: Tsi Incorporated
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Counter,particle, cataloged under National Stock Number 6635-01-582-3234, is classified within Federal Supply Class 6635 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Tsi Incorporated. Government technical data includes 4 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6635-01-582-3234
Primary Part Number8587A
Item NameCounter,particle
FSC / FSG6635 / 66 — No Item Name Available
ManufacturerTsi Incorporated
StatusACTIVE
Unpackaged Unit Weight13.500 POUNDS LBS
Accessory Components and QuantityPHOTOMETER 1; MANUAL 1; POWER CORD 1; DRIVERS CD 1; FILTER SET 1
Voltage in Volts and Current Type115.0 AC OR 230.0 AC
Functional DescriptionUSED TO TEST EFFECIENCY OF FILTERS SUCH AS USED IN PROTECTIVE MASKS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6515-01-643-13528587A INTERCHANGEABLE
Laryngoscope
Karl Storz Endoscopy-America Inc
Cross-Reference Index
Part NumberManufacturer
8587A PRIMARY Tsi Incorporated (USA)
Related Parts
6515-01-643-1352INTERCHANGEABLE
LARYNGOSCOPE
8587A

Frequently Asked Questions

What is NSN 6635-01-582-3234?

NSN 6635-01-582-3234 is a Counter,particle, manufactured by Tsi Incorporated, classified under FSC 6635 (No Item Name Available). Status: active.

What are the part numbers for NSN 6635-01-582-3234?

NSN 6635-01-582-3234 has 1 cross-referenced part number: 8587A (Tsi Incorporated).

What NSN replaces 6635-01-582-3234?

There is 1 known substitute for 6635-01-582-3234: 6515-01-643-1352. Verify interchangeability with system specifications before substitution.

What are the specifications of 8587A?

Key specifications for 8587A: Unpackaged Unit Weight: 13.500 POUNDS LBS; Accessory Components and Quantity: PHOTOMETER 1; MANUAL 1; POWER CORD 1; DRIVERS CD 1; FILTER SET 1; Voltage in Volts and Current Type: 115.0 AC OR 230.0 AC; Overall Width: 6.250 INCHES NOMINAL IN. 9 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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