PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820Microtome

Leica Inc Surveying and Photogrammetry Systems Div · NSN 6640-01-004-8498 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-01-004-8498 — this item is cataloged by the U.S. Government under National Stock Number 6640-01-004-8498. Primary manufacturer part number: 820.
Features
  • Microtome — FSC 6640
  • 2 verified cross-references
  • Primary manufacturer: Leica Inc Surveying and Photogrammetry Systems Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microtome, cataloged under National Stock Number 6640-01-004-8498, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Leica Inc Surveying and Photogrammetry Systems Div. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6640-01-004-8498
Primary Part Number820
Item NameMicrotome
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerLeica Inc Surveying and Photogrammetry Systems Div
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-099312601 INTERCHANGEABLE
Seat,valve
Schneider Electric Systems Usa Inc
4310-00-124-9688 INTERCHANGEABLE
Vacuum Pump Unit,reciprocating
5950-00-211-199040-036580-01 INTERCHANGEABLE
Transformer,pulse
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
5977-00-435-011440183 INTERCHANGEABLE
Holder,electrical Contact Brush
Electro-Tec Corp Dba Moog Inc., Components Group
6210-00-516-1516L296U INTERCHANGEABLE
Fixture,lighting
Lithonia Lighting National Services Industries Inc Div
4730-00-700-061212-601 INTERCHANGEABLE
Packing Nut
Garwood/feller Inc Garwood Winch Div
3610-00-780-167612601 INTERCHANGEABLE
Screw,past Carrier
Smyth Mfg Co Sub of the Beacon Group
5920-00-916-066712-601 INTERCHANGEABLE
Fuse,plug
Miller Electric Mfg. Llc
1377-01-103-33501260-1 INTERCHANGEABLE
Gas Generator
Universal Propulsion Company Inc Dba Goodrich Div Universal Propulsion Co., Inc.
5962-01-108-5142 INTERCHANGEABLE
Microcircuit,memory
Cross-Reference Index
Part NumberManufacturer
12-601 Fisher Scientific Company L.l.c. (USA)
820 PRIMARY Leica Inc Surveying and Photogrammetry Systems Div (USA)
Related Parts
4820-00-036-0993INTERCHANGEABLE
SEAT,VALVE
12601
4310-00-124-9688INTERCHANGEABLE
VACUUM PUMP UNIT,RECIPROCATING
5950-00-211-1990INTERCHANGEABLE
TRANSFORMER,PULSE
40-036580-01
5977-00-435-0114INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
40183
6210-00-516-1516INTERCHANGEABLE
FIXTURE,LIGHTING
L296U
4730-00-700-0612INTERCHANGEABLE
PACKING NUT
12-601
3610-00-780-1676INTERCHANGEABLE
SCREW,PAST CARRIER
12601
5920-00-916-0667INTERCHANGEABLE
FUSE,PLUG
12-601
1377-01-103-3350INTERCHANGEABLE
GAS GENERATOR
1260-1
5962-01-108-5142INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5930-01-251-4977INTERCHANGEABLE
SWITCH,FLOW
12601
4820-01-320-0195INTERCHANGEABLE
GAGGING ASSEMBLY,VALVE
12601.001

Frequently Asked Questions

What is NSN 6640-01-004-8498?

NSN 6640-01-004-8498 is a Microtome, manufactured by Leica Inc Surveying and Photogrammetry Systems Div, classified under FSC 6640 (No Item Name Available). Status: active.

What are the part numbers for NSN 6640-01-004-8498?

NSN 6640-01-004-8498 has 2 cross-referenced part numbers: 12-601 (Fisher Scientific Company L.l.c.), 820 (Leica Inc Surveying and Photogrammetry Systems Div).

What NSN replaces 6640-01-004-8498?

There are 12 known substitutes for 6640-01-004-8498: 4820-00-036-0993, 4310-00-124-9688, 5950-00-211-1990 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820?

Key specifications for 820: Special Features: THICKNESS CUT OF EMBEDDED TISSUE BLOCKS FROM 1 TO 50 MICROMETERS,HOLDS SAMPLES UP TO 28 MM LG,TWO TONE GRAY ROTARY TYPE,SIZE 14 IN. LG BY 8-5/8 IN. W BY 8-3/8 IN. H,120 MM KNIFE MM. 1 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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