PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G-1.8-0.00Gasket,optical

Opticast Inc · NSN 6540-01-515-6813 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-515-6813 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-515-6813. Primary manufacturer part number: G-1.8-0.00.
Features
  • Gasket,optical — FSC 6540
  • 3 verified cross-references
  • Primary manufacturer: Opticast Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Gasket,optical, cataloged under National Stock Number 6540-01-515-6813, is classified within Federal Supply Class 6540 (No Item Name Available) of the Medical, Dental, and Veterinary Equipment group. The primary manufacturer of record is Opticast Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN6540-01-515-6813
Primary Part NumberG-1.8-0.00
Item NameGasket,optical
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerOpticast Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5330-01-044-2053032480 INTERCHANGEABLE
Seal,plain Encased
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5835-01-050-6993G180 INTERCHANGEABLE
Recorder Subassembly
Compaq Federal Llc
Cross-Reference Index
Part NumberManufacturer
6540NCM032113 Defense Medical Standardization Board (USA)
03-2480 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
G-1.8-0.00 PRIMARY Opticast Inc (USA)
Related Parts
5330-01-044-2053INTERCHANGEABLE
SEAL,PLAIN ENCASED
032480
5835-01-050-6993INTERCHANGEABLE
RECORDER SUBASSEMBLY
G180

Frequently Asked Questions

What is NSN 6540-01-515-6813?

NSN 6540-01-515-6813 is a Gasket,optical, manufactured by Opticast Inc, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-515-6813?

NSN 6540-01-515-6813 has 3 cross-referenced part numbers: 6540NCM032113 (Defense Medical Standardization Board), 03-2480 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia), G-1.8-0.00 (Opticast Inc).

What NSN replaces 6540-01-515-6813?

There are 2 known substitutes for 6540-01-515-6813: 5330-01-044-2053, 5835-01-050-6993. Verify interchangeability with system specifications before substitution.

What are the specifications of G-1.8-0.00?

Key specifications for G-1.8-0.00: Special Features: REPLACEMENT COMPONENT FOR THE STANDARD GASKET SET, NSN: 6540-01-507-3519; Part Name Assigned by Controlling Agency: OPTICAL GASKET G-1.8-0.00 FOR OPTICAL GASKET SET. 2 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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