PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RT-322KShield,face,phoropter

Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart · NSN 6540-01-553-2849 · FSC 6540 · No Item Name Available
Verified by PartsTable
NSN 6540-01-553-2849 — this item is cataloged by the U.S. Government under National Stock Number 6540-01-553-2849. Primary manufacturer part number: RT-322K.
Features
  • Shield,face,phoropter — FSC 6540
  • 3 verified cross-references
  • Primary manufacturer: Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Shield,face,phoropter, cataloged under National Stock Number 6540-01-553-2849, 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 Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: PR.

Technical Specifications
ParameterValue
NSN6540-01-553-2849
Primary Part NumberRT-322K
Item NameShield,face,phoropter
FSC / FSG6540 / 65 — No Item Name Available
ManufacturerLombart Brothers, Inc Dba Marco Lombart Div Marco Lombart
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssuePR
Verified Substitutes 10
Power Supply
2940-00-074-35844L9852 INTERCHANGEABLE
Filter Element,intake Air Cleane
Caterpillar Inc Div Caterpillar Defense
5325-00-185-0017 INTERCHANGEABLE
Grommet,nonmetallic
4730-00-200-04882852 INTERCHANGEABLE
Packing Nut
King Engineering Corporation Dba King-Gage Systems
5950-00-415-6122SMC359294 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
4130-00-546-3523 INTERCHANGEABLE
Tee,drier
1680-00-571-2184B2852 INTERCHANGEABLE
Plate,actuator Swit
Aerocontrolex Group, Inc. Div Talley Actuators
2940-00-892-2984140-0495 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Power Generation Inc.
5940-01-259-1205892R095 INTERCHANGEABLE
Terminal,lug
Aerocontrolex Group, Inc. Dba Aero Fluid Products
5360-01-376-94952852 INTERCHANGEABLE
Spring,helical,compression
Corken International Corp Sub of Hinderliter Industries Inc
Cross-Reference Index
Part NumberManufacturer
6540NCM071200 Defense Medical Standardization Board (USA)
RT-322K PRIMARY Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart (USA)
2852 Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia (USA)
Related Parts
6130-01-435-5745SUCCESSOR
POWER SUPPLY
2940-00-074-3584INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
4L9852
5325-00-185-0017INTERCHANGEABLE
GROMMET,NONMETALLIC
4730-00-200-0488INTERCHANGEABLE
PACKING NUT
2852
5950-00-415-6122INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SMC359294
4130-00-546-3523INTERCHANGEABLE
TEE,DRIER
1680-00-571-2184INTERCHANGEABLE
PLATE,ACTUATOR SWIT
B2852
2940-00-892-2984INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
140-0495
5940-01-259-1205INTERCHANGEABLE
TERMINAL,LUG
892R095
5360-01-376-9495INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
2852

Frequently Asked Questions

What is NSN 6540-01-553-2849?

NSN 6540-01-553-2849 is a Shield,face,phoropter, manufactured by Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart, classified under FSC 6540 (No Item Name Available). Status: active.

What are the part numbers for NSN 6540-01-553-2849?

NSN 6540-01-553-2849 has 3 cross-referenced part numbers: 6540NCM071200 (Defense Medical Standardization Board), RT-322K (Lombart Brothers, Inc Dba Marco Lombart Div Marco Lombart), 2852 (Defense Logistics Agency Directorate of Medical Materiel Defense Supply Center Philadelphia).

What NSN replaces 6540-01-553-2849?

There are 10 known substitutes for 6540-01-553-2849: 6130-01-435-5745, 2940-00-074-3584, 5325-00-185-0017 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RT-322K?

Key specifications for RT-322K: Special Features: STERILIZABLE; WHITE NYLON; FOR THE PHOROPTER MINUS CYLINDRICAL LENS TYPE; END ITEM NSN 6540-00-877-6464; FOUND IN ARMY UNIT ASEMBLAGE N315, MEDICAL MATERIEL SET EYE EXAM CLINIC: DEPMEDS; Part Name Assigned by Controlling Agency: SHIELD STERILIZABLE WHITE NYLON FACE FOR USE W/NSN 6540-00-877-6464 PR. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com