PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28450-026Paper,filter

Vwr International, Llc Dba Vwr Scientific · NSN 6640-00-836-6870 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-836-6870 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-836-6870. Primary manufacturer part number: 28450-026.
Features
  • Paper,filter — FSC 6640
  • Folded Characteristic: NOT FOLDED
  • Hardening Feature: NOT INCLUDED
  • Precipitate for Which Designed: FINE
  • Primary Container Unit Quantity: 100
  • Reference Number Differentiating Characteristics: SIZE 4.25 CM DIA SELECTED AND TESTED FOR NUCLEAR SYSTEMS CM
  • Paper Type: QUALITATIVE
  • Diameter: 4.25 CENTIMETERS NOMINAL CM
Applications
  • Fluid filtration and purification
  • Engine intake air cleaning
  • Hydraulic system protection
General Description

The Paper,filter, cataloged under National Stock Number 6640-00-836-6870, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Vwr International, Llc Dba Vwr Scientific. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6640-00-836-6870
Primary Part Number28450-026
Item NamePaper,filter
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerVwr International, Llc Dba Vwr Scientific
StatusCANCELLED
Folded CharacteristicNOT FOLDED
Hardening FeatureNOT INCLUDED
Precipitate for Which DesignedFINE
Primary Container Unit Quantity100
Reference Number Differentiating CharacteristicsSIZE 4.25 CM DIA SELECTED AND TESTED FOR NUCLEAR SYSTEMS CM
Paper TypeQUALITATIVE
Diameter4.25 CENTIMETERS NOMINAL CM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5950-00-017-4414MB-100-1042-10 INTERCHANGEABLE
Transformer,power
Kepco, Inc. Dba Kepco Inc Div Kepco Dynatronix
5975-00-051-733773B10017 INTERCHANGEABLE
Panel,blank
Delma Corporation Dba Dayton Manufacturing Company
5325-00-291-3484 INTERCHANGEABLE
Insert,screw Thread
6640-01-447-9942 INTERCHANGEABLE
Paper,filter
Cross-Reference Index
Part NumberManufacturer
28450-026 Vwr International, Llc Dba Vwr Scientific (USA)
1001-042 Positive Fastener Co (USA)
09-805A Fisher Scientific Company L.l.c. (USA)
CHFP1159 Cardinal Health 200, Llc (USA)
4712B10 Arthur H. Thomas Company (USA)
Related Parts
5950-00-017-4414INTERCHANGEABLE
TRANSFORMER,POWER
MB-100-1042-10
5975-00-051-7337INTERCHANGEABLE
PANEL,BLANK
73B10017
5325-00-291-3484INTERCHANGEABLE
INSERT,SCREW THREAD
6640-01-447-9942INTERCHANGEABLE
PAPER,FILTER

Frequently Asked Questions

What is NSN 6640-00-836-6870?

NSN 6640-00-836-6870 is a Paper,filter, manufactured by Vwr International, Llc Dba Vwr Scientific, classified under FSC 6640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6640-00-836-6870?

NSN 6640-00-836-6870 has 5 cross-referenced part numbers: 28450-026 (Vwr International, Llc Dba Vwr Scientific), 1001-042 (Positive Fastener Co), 09-805A (Fisher Scientific Company L.l.c.), CHFP1159 (Cardinal Health 200, Llc), 4712B10 (Arthur H. Thomas Company).

What NSN replaces 6640-00-836-6870?

There are 4 known substitutes for 6640-00-836-6870: 5950-00-017-4414, 5975-00-051-7337, 5325-00-291-3484 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28450-026?

Key specifications for 28450-026: Folded Characteristic: NOT FOLDED; Hardening Feature: NOT INCLUDED; Precipitate for Which Designed: FINE; Part Name Assigned by Controlling Agency: PAPER FILTER 4.250 DIA FINE NOT FOLDED FOR NUCLEAR SYSTEMS. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6640-00-836-6870 still in active supply?

NSN 6640-00-836-6870 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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