PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

240DCover,ignition Crucible,laborato

Coorstek Inc Div Headquarters · NSN 6640-00-494-3607 · FSC 6640 · No Item Name Available
Verified by PartsTable
NSN 6640-00-494-3607 — this item is cataloged by the U.S. Government under National Stock Number 6640-00-494-3607. Primary manufacturer part number: 240D.
Features
  • Cover,ignition Crucible,laborato — FSC 6640
  • Glaze Location: OVERALL
  • Nondefinitive Spec/std Data: 3 SIZE
  • Style Designator: CAP
  • Material: PORCELAIN
  • Primary Container Type: CARTON
  • Features Provided: HANDLE
  • Total Primary Container Quantity: 1
Applications
  • Applications requiring Porcelain construction
General Description

The Cover,ignition Crucible,laborato, cataloged under National Stock Number 6640-00-494-3607, is classified within Federal Supply Class 6640 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Coorstek Inc Div Headquarters. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6640-00-494-3607
Primary Part Number240D
Item NameCover,ignition Crucible,laborato
FSC / FSG6640 / 66 — No Item Name Available
ManufacturerCoorstek Inc Div Headquarters
StatusCANCELLED
Glaze LocationOVERALL
Nondefinitive Spec/std Data3 SIZE
Style DesignatorCAP
MaterialPORCELAIN
Primary Container TypeCARTON
Features ProvidedHANDLE
Total Primary Container Quantity1
Inside Diameter34.00 MILLIMETERS NOMINAL MM
Primary Container Unit Quantity1
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
6640-00-290-678060104 INTERCHANGEABLE
Crucible,ignition,laboratory
Coorstek Inc Div Headquarters
1650-00-373-74387970 INTERCHANGEABLE
Head,valve
Huck International, Inc. Div Kingston Operations
5975-00-497-2201 INTERCHANGEABLE
Cable Nipple,electrical
6640-00-551-128660146 INTERCHANGEABLE
Crucible,filtering,laboratory
Coorstek, Inc. Dba Coorstek, Inc
6640-00-558-0772240B INTERCHANGEABLE
Cover,ignition Crucible,laborato
Coorstek Inc Div Headquarters
6640-00-893-691560103 INTERCHANGEABLE
Crucible,ignition,laboratory
Coorstek Inc Div Headquarters
5365-01-095-50263G6905 INTERCHANGEABLE
Spacer,plate
Caterpillar Inc Div Caterpillar Defense
6105-01-363-8999 INTERCHANGEABLE
Motor,alternating Current
5120-01-430-6758240D INTERCHANGEABLE
Vise,pin
L.s. Starrett Company (the) Div Tool Division
1005-01-512-27257607P INTERCHANGEABLE
Cartridge,interrupt
O F Mossberg & Sons Inc
Cross-Reference Index
Part NumberManufacturer
240D Coorstek Inc Div Headquarters (USA)
7-970 Fisher Scientific Company L.l.c. (USA)
MS35969-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
07-970D Fisher Scientific Company L.l.c. (USA)
NNNC00680 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3319D30 Arthur H. Thomas Company (USA)
Related Parts
6640-00-290-6780INTERCHANGEABLE
CRUCIBLE,IGNITION,LABORATORY
60104
1650-00-373-7438INTERCHANGEABLE
HEAD,VALVE
7970
5975-00-497-2201INTERCHANGEABLE
CABLE NIPPLE,ELECTRICAL
6640-00-551-1286INTERCHANGEABLE
CRUCIBLE,FILTERING,LABORATORY
60146
6640-00-558-0772INTERCHANGEABLE
COVER,IGNITION CRUCIBLE,LABORATO
240B
6640-00-893-6915INTERCHANGEABLE
CRUCIBLE,IGNITION,LABORATORY
60103
5365-01-095-5026INTERCHANGEABLE
SPACER,PLATE
3G6905
6105-01-363-8999INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
5120-01-430-6758INTERCHANGEABLE
VISE,PIN
240D
1005-01-512-2725INTERCHANGEABLE
CARTRIDGE,INTERRUPT
7607P
7330-01-643-5224INTERCHANGEABLE
OPENER,CAN,HAND
7970

Frequently Asked Questions

What is NSN 6640-00-494-3607?

NSN 6640-00-494-3607 is a Cover,ignition Crucible,laborato, manufactured by Coorstek Inc Div Headquarters, classified under FSC 6640 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6640-00-494-3607?

NSN 6640-00-494-3607 has 6 cross-referenced part numbers: 240D (Coorstek Inc Div Headquarters), 7-970 (Fisher Scientific Company L.l.c.), MS35969-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 07-970D (Fisher Scientific Company L.l.c.), NNNC00680 (Federal Specifications Promulgated by General Services Administration Washington DC) and 1 more.

What NSN replaces 6640-00-494-3607?

There are 11 known substitutes for 6640-00-494-3607: 6640-00-290-6780, 1650-00-373-7438, 5975-00-497-2201 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 240D?

Key specifications for 240D: Glaze Location: OVERALL; Nondefinitive Spec/std Data: 3 SIZE; Style Designator: CAP; Material: PORCELAIN. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6640-00-494-3607 still in active supply?

NSN 6640-00-494-3607 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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