PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

170431Blocks,optical Fabr

Gerber Coburn Optical, Inc · NSN 6540-01-451-7956 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-451-7956 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-451-7956. Primary manufacturer part number: 170431.
Features
  • Blocks,optical Fabr — FSC 6540
  • General Characteristics Item Description: 6 DIOPTER BASE; UNIT PKG QTY: 10 BLOCKS; FOR USE W/GERBER ONE STEP SYSTEM
  • 2 verified cross-references
  • Primary manufacturer: Gerber Coburn Optical, Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Blocks,optical Fabr, cataloged under National Stock Number 6540-01-451-7956, 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 Gerber Coburn Optical, Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PG.

Technical Specifications
ParameterValue
NSN6540-01-451-7956
Primary Part Number170431
Item NameBlocks,optical Fabr
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerGerber Coburn Optical, Inc
StatusACTIVE
General Characteristics Item Description6 DIOPTER BASE; UNIT PKG QTY: 10 BLOCKS; FOR USE W/GERBER ONE STEP SYSTEM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePG
Verified Substitutes 1
5910-00-777-6920 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Cross-Reference Index
Part NumberManufacturer
170431 PRIMARY Gerber Coburn Optical, Inc (USA)
97-0862 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
5910-00-777-6920INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC

Frequently Asked Questions

What is NSN 6540-01-451-7956?

NSN 6540-01-451-7956 is a Blocks,optical Fabr, manufactured by Gerber Coburn Optical, Inc, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-451-7956?

NSN 6540-01-451-7956 has 2 cross-referenced part numbers: 170431 (Gerber Coburn Optical, Inc), 97-0862 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6540-01-451-7956?

There is 1 known substitute for 6540-01-451-7956: 5910-00-777-6920. Verify interchangeability with system specifications before substitution.

What are the specifications of 170431?

Key specifications for 170431: General Characteristics Item Description: 6 DIOPTER BASE; UNIT PKG QTY: 10 BLOCKS; FOR USE W/GERBER ONE STEP SYSTEM; Part Name Assigned by Controlling Agency: BLOCKS OPTICAL FABR 6 DIOPTER BASE U/W GERBER ONE STEP. 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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