PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S123Lens,projection

Buhl Optical Co · NSN 6760-00-232-2731 · FSC 6760 · No Item Name Available
Verified by PartsTable
NSN 6760-00-232-2731 — this item is cataloged by the U.S. Government under National Stock Number 6760-00-232-2731. Primary manufacturer part number: S123.
Features
  • Lens,projection — FSC 6760
  • Performance Type: ANASTIGMAT
  • Overall Diameter: 1.3125 INCHES NOMINAL IN
  • Mounting Characteristic: MOUNTED
  • Field View Coverage: 3-1/4 IN. BY 3-1/4 IN. FIELD OF VIEW COVERED IN
  • Mounting Provision for Which Designed: BARREL
  • Lens Focal Length: 10.000 INCHES NOMINAL IN
  • 2 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lens,projection, cataloged under National Stock Number 6760-00-232-2731, is classified within Federal Supply Class 6760 (No Item Name Available) of the Photographic Equipment group. The primary manufacturer of record is Buhl Optical Co. Government technical data includes 6 verified specifications, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN6760-00-232-2731
Primary Part NumberS123
Item NameLens,projection
FSC / FSG6760 / 67 — No Item Name Available
ManufacturerBuhl Optical Co
StatusACTIVE
Performance TypeANASTIGMAT
Overall Diameter1.3125 INCHES NOMINAL IN
Mounting CharacteristicMOUNTED
Field View Coverage3-1/4 IN. BY 3-1/4 IN. FIELD OF VIEW COVERED IN
Mounting Provision for Which DesignedBARREL
Lens Focal Length10.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5130-00-119-4281S12-3 INTERCHANGEABLE
Cylinder
Ingersoll Rand Co Athens Plant
6240-00-155-7888549629PC12 INTERCHANGEABLE
Lamp,incandescent
Naval Ship Systems Command
5360-00-292-4214 INTERCHANGEABLE
Spring,helical,compression
5330-00-346-3594S12604-119 INTERCHANGEABLE
Retainer,packing
Trelleborg Sealing Solutions Us, Inc.
5325-00-598-2337 INTERCHANGEABLE
Ring,retaining
5365-00-657-4441S123 INTERCHANGEABLE
Spacer,ring
Dana Corp Spicer Transmission Div
9540-00-727-5788 INTERCHANGEABLE
Angle,structural
5905-00-858-365516-340001 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Psi-Peripheral Support
5365-01-461-3304S123 INTERCHANGEABLE
Shim
Deval Life Cycle Support Llc
Cross-Reference Index
Part NumberManufacturer
S123 Buhl Optical Co (USA)
BS1-1-4 Beseler, Charles Co Inc (USA)
Related Parts
5130-00-119-4281INTERCHANGEABLE
CYLINDER
S12-3
6240-00-155-7888INTERCHANGEABLE
LAMP,INCANDESCENT
549629PC12
5360-00-292-4214INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5330-00-346-3594INTERCHANGEABLE
RETAINER,PACKING
S12604-119
5325-00-598-2337INTERCHANGEABLE
RING,RETAINING
5365-00-657-4441INTERCHANGEABLE
SPACER,RING
S123
9540-00-727-5788INTERCHANGEABLE
ANGLE,STRUCTURAL
5905-00-858-3655INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
16-340001
5365-01-461-3304INTERCHANGEABLE
SHIM
S123

Frequently Asked Questions

What is NSN 6760-00-232-2731?

NSN 6760-00-232-2731 is a Lens,projection, manufactured by Buhl Optical Co, classified under FSC 6760 (No Item Name Available). Status: active.

What are the part numbers for NSN 6760-00-232-2731?

NSN 6760-00-232-2731 has 2 cross-referenced part numbers: S123 (Buhl Optical Co), BS1-1-4 (Beseler, Charles Co Inc).

What NSN replaces 6760-00-232-2731?

There are 9 known substitutes for 6760-00-232-2731: 5130-00-119-4281, 6240-00-155-7888, 5360-00-292-4214 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S123?

Key specifications for S123: Performance Type: ANASTIGMAT; Overall Diameter: 1.3125 INCHES NOMINAL IN; Overall Length: 3.375 INCHES NOMINAL IN; Mounting Characteristic: MOUNTED. 7 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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