PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1175Antifogging Compound

Silar Laboratories Inc · NSN 6850-01-005-4857 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-01-005-4857 — this item is cataloged by the U.S. Government under National Stock Number 6850-01-005-4857. Primary manufacturer part number: 1175.
Features
  • Antifogging Compound — FSC 6850
  • Polishing Cloth: NOT INCLUDED
  • Quantity Within Each Unit Package: 50.0 MILLILITERS
  • Basic Ingredient: HEPTAFLUOROISOPROPOXY)PROPYLTRICHLOROSILANE
  • Physical Form: LIQUID
  • Usage Design: PERISCOPE HEADWINDOW
  • 4 verified cross-references
  • Primary manufacturer: Silar Laboratories Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Antifogging Compound, cataloged under National Stock Number 6850-01-005-4857, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Silar Laboratories Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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.

Technical Specifications
ParameterValue
NSN6850-01-005-4857
Primary Part Number1175
Item NameAntifogging Compound
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerSilar Laboratories Inc
StatusACTIVE
Polishing ClothNOT INCLUDED
Quantity Within Each Unit Package50.0 MILLILITERS
Basic IngredientHEPTAFLUOROISOPROPOXY)PROPYLTRICHLOROSILANE
Physical FormLIQUID
Usage DesignPERISCOPE HEADWINDOW
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4810-00-068-6712 INTERCHANGEABLE
Valve,solenoid
4810-00-081-567026330053 INTERCHANGEABLE
Valve,solenoid
Rtx Corporation Div Pratt & Whitney
5120-00-203-4808 INTERCHANGEABLE
Wrench,open End
4810-00-884-843128040 INTERCHANGEABLE
Valve,solenoid
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5950-01-023-2587 INTERCHANGEABLE
Coil,radio Frequency
9905-01-059-3724 INTERCHANGEABLE
Plate,instruction
8115-01-338-833428040 INTERCHANGEABLE
Box,small Parts
Cargille-Sacher Laboratories, Inc
5961-01-393-443728040 INTERCHANGEABLE
Semiconductor Device,diode
Eldec Aerospace Corp
6515-01-466-4475280.40 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
2805-01-562-857928040 INTERCHANGEABLE
FS20000 Engine Fuel Filter
Willard Marine, Inc.
Cross-Reference Index
Part NumberManufacturer
28040 Pcr Inc Dba Scm Specialty Chemicals Sub Oc Scm Corp (USA)
1175 PRIMARY Silar Laboratories Inc (USA)
MIL-A-28844 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3-HEPT Pcr Inc Dba Scm Specialty Chemicals Sub Oc Scm Corp (USA)
Related Parts
4810-00-068-6712INTERCHANGEABLE
VALVE,SOLENOID
4810-00-081-5670INTERCHANGEABLE
VALVE,SOLENOID
26330053
5120-00-203-4808INTERCHANGEABLE
WRENCH,OPEN END
4810-00-884-8431INTERCHANGEABLE
VALVE,SOLENOID
28040
5950-01-023-2587INTERCHANGEABLE
COIL,RADIO FREQUENCY
9905-01-059-3724INTERCHANGEABLE
PLATE,INSTRUCTION
8115-01-338-8334INTERCHANGEABLE
BOX,SMALL PARTS
28040
5961-01-393-4437INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
28040
6515-01-466-4475INTERCHANGEABLE
SCREW,BONE
280.40
2805-01-562-8579INTERCHANGEABLE
FS20000 ENGINE FUEL FILTER
28040

Frequently Asked Questions

What is NSN 6850-01-005-4857?

NSN 6850-01-005-4857 is a Antifogging Compound, manufactured by Silar Laboratories Inc, classified under FSC 6850 (No Item Name Available). Status: active.

What are the part numbers for NSN 6850-01-005-4857?

NSN 6850-01-005-4857 has 4 cross-referenced part numbers: 28040 (Pcr Inc Dba Scm Specialty Chemicals Sub Oc Scm Corp), 1175 (Silar Laboratories Inc), MIL-A-28844 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 3-HEPT (Pcr Inc Dba Scm Specialty Chemicals Sub Oc Scm Corp).

What NSN replaces 6850-01-005-4857?

There are 10 known substitutes for 6850-01-005-4857: 4810-00-068-6712, 4810-00-081-5670, 5120-00-203-4808 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1175?

Key specifications for 1175: Polishing Cloth: NOT INCLUDED; Quantity Within Each Unit Package: 50.0 MILLILITERS; Basic Ingredient: HEPTAFLUOROISOPROPOXY)PROPYLTRICHLOROSILANE; Physical Form: LIQUID. 6 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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