PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

641WCatch,clamping

Eastern Co the Ccl Security Products · NSN 5340-01-331-7980 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-331-7980 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-331-7980. Primary manufacturer part number: 641W.
Features
  • Catch,clamping — FSC 5340
  • Material Thickness: 0.078 INCHES NOMINAL IN
  • Engaging Surface Thickness: 0.156 INCHES NOMINAL IN
  • Width: 1.030 INCHES NOMINAL IN
  • Tongue Width: 0.812 INCHES NOMINAL IN
  • Height: 0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
  • Catch Strike Style: MORTISE
  • Style Designator: LEVER
Applications
  • Applications requiring Steel Overall construction
General Description

The Catch,clamping, cataloged under National Stock Number 5340-01-331-7980, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Eastern Co the Ccl Security Products. Government technical data includes 8 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-331-7980
Primary Part Number641W
Item NameCatch,clamping
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerEastern Co the Ccl Security Products
StatusACTIVE
Material Thickness0.078 INCHES NOMINAL IN
Engaging Surface Thickness0.156 INCHES NOMINAL IN
Width1.030 INCHES NOMINAL IN
Tongue Width0.812 INCHES NOMINAL IN
Height0.390 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
Catch Strike StyleMORTISE
Style DesignatorLEVER
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5340-00-421-4957 (NAS1786C02-7)
HAZMATNo
Unit of IssueEA
Verified Substitutes 8
5340-00-421-4957NAS1786C02-7 SUCCESSOR
Standoff,threaded,spacing
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3830-00-161-5803 INTERCHANGEABLE
Shaft
4520-00-174-0039 INTERCHANGEABLE
Heating Element,electrical,nonim
5950-00-194-1730SCD2567GROUP1 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
8135-00-245-94395/8.030 INTERCHANGEABLE
Strapping
Independent Metal Strap Co Inc
6615-00-897-3209C205 INTERCHANGEABLE
Parts Kit,actuator
Moog Inc
4520-01-284-6056 INTERCHANGEABLE
Heating Element,electrical,nonim
5995-01-605-4876C205 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
641-W Emhart Industries Inc Corbin Cabinet Lock Hardware Div (USA)
C205 Nielsen Hardware Corporation (USA)
641W PRIMARY Eastern Co the Ccl Security Products (USA)
C205 Nielsen Hardware Corp (USA)
72-2285 Department of Defense Project Manager-Mobile Electric Power (USA)
Related Parts
SUCCESSOR 5340-00-421-4957 Standoff,threaded,spacing · NAS1786C02-7
3830-00-161-5803INTERCHANGEABLE
SHAFT
4520-00-174-0039INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5950-00-194-1730INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SCD2567GROUP1
8135-00-245-9439INTERCHANGEABLE
STRAPPING
5/8.030
6615-00-897-3209INTERCHANGEABLE
PARTS KIT,ACTUATOR
C205
4520-01-284-6056INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
5995-01-605-4876INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
C205

Frequently Asked Questions

What is NSN 5340-01-331-7980?

NSN 5340-01-331-7980 is a Catch,clamping, manufactured by Eastern Co the Ccl Security Products, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-331-7980?

NSN 5340-01-331-7980 has 5 cross-referenced part numbers: 641-W (Emhart Industries Inc Corbin Cabinet Lock Hardware Div), C205 (Nielsen Hardware Corporation), 641W (Eastern Co the Ccl Security Products), C205 (Nielsen Hardware Corp), 72-2285 (Department of Defense Project Manager-Mobile Electric Power).

What NSN replaces 5340-01-331-7980?

There are 8 known substitutes for 5340-01-331-7980: 5340-00-421-4957, 3830-00-161-5803, 4520-00-174-0039 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 641W?

Key specifications for 641W: Material Thickness: 0.078 INCHES NOMINAL IN; Engaging Surface Thickness: 0.156 INCHES NOMINAL IN; Width: 1.030 INCHES NOMINAL IN; Tongue Width: 0.812 INCHES NOMINAL IN. 11 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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