PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42540Sealer,chemical

Loctite Corp · NSN 6850-01-390-7555 · FSC 6850 · No Item Name Available
Verified by PartsTable
NSN 6850-01-390-7555 — this item is cataloged by the U.S. Government under National Stock Number 6850-01-390-7555. Primary manufacturer part number: 42540.
Features
  • Sealer,chemical — FSC 6850
  • Supplementary Features: 20 GRAM BOTTLE G
  • 11 verified cross-references
  • Primary manufacturer: Loctite Corp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Sealer,chemical, cataloged under National Stock Number 6850-01-390-7555, is classified within Federal Supply Class 6850 (No Item Name Available) of the Chemicals and Chemical Products group. The primary manufacturer of record is Loctite Corp. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6850-01-390-7555
Primary Part Number42540
Item NameSealer,chemical
FSC / FSG6850 / 68 — No Item Name Available
ManufacturerLoctite Corp
StatusCANCELLED
Supplementary Features20 GRAM BOTTLE G
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5970-00-020-9007208861-1 INTERCHANGEABLE
Insulator,feedthru
Raytheon Company
2940-00-127-9440130763 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Filtration Inc.
2805-00-737-88817378881 INTERCHANGEABLE
Guide,valve Stem
U S Army Tank Automotive Command Amsta-Im-Mm
5965-00-783-8237020-030-001-000 INTERCHANGEABLE
Earphone Element
Roanwell, Llc
2540-01-062-4079 INTERCHANGEABLE
Pedal,control
8030-01-296-385642561 INTERCHANGEABLE
Sealing Compound
Loctite Corp
4820-01-391-900142540 INTERCHANGEABLE
Valve,check
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
6750-01-427-1223 INTERCHANGEABLE
Film,photographic
2540-01-478-0702135461 INTERCHANGEABLE
Handle,door,vehicular
Machining & Fabricating Inc
Cross-Reference Index
Part NumberManufacturer
42540 PRIMARY Loctite Corp (USA)
001-110001R00 Insitu, Inc. (USA)
ASSURE 425 Loctite Corp (USA)
6207529 Naval Sea Systems Command (USA)
312815 Hernon Manufacturing, Inc. (USA)
LOCTITE 425 Loctite Corp (USA)
128 Hernon Manufacturing, Inc. (USA)
425 Loctite Corp (USA)
001-110001R00 Insitu Pacific Pty Ltd (AUS)
LOCTITE 425-20 GR Addev Materials Aerospace B.v. (NLD)
135461 Loctite Corp (USA)
Related Parts
5970-00-020-9007INTERCHANGEABLE
INSULATOR,FEEDTHRU
208861-1
2940-00-127-9440INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
130763
2805-00-737-8881INTERCHANGEABLE
GUIDE,VALVE STEM
7378881
5965-00-783-8237INTERCHANGEABLE
EARPHONE ELEMENT
020-030-001-000
2540-01-062-4079INTERCHANGEABLE
PEDAL,CONTROL
8030-01-296-3856INTERCHANGEABLE
SEALING COMPOUND
42561
4820-01-391-9001INTERCHANGEABLE
VALVE,CHECK
42540
6750-01-427-1223INTERCHANGEABLE
FILM,PHOTOGRAPHIC
2540-01-478-0702INTERCHANGEABLE
HANDLE,DOOR,VEHICULAR
135461

Frequently Asked Questions

What is NSN 6850-01-390-7555?

NSN 6850-01-390-7555 is a Sealer,chemical, manufactured by Loctite Corp, classified under FSC 6850 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6850-01-390-7555?

NSN 6850-01-390-7555 has 11 cross-referenced part numbers: 42540 (Loctite Corp), 001-110001R00 (Insitu, Inc.), ASSURE 425 (Loctite Corp), 6207529 (Naval Sea Systems Command), 312815 (Hernon Manufacturing, Inc.) and 6 more.

What NSN replaces 6850-01-390-7555?

There are 9 known substitutes for 6850-01-390-7555: 5970-00-020-9007, 2940-00-127-9440, 2805-00-737-8881 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42540?

Key specifications for 42540: Special Features: LOW VISCOSITY; LOW STRENGTH; HUMIDITY CURE; FOR USE ON METAL AND PLASTIC FASTENERS; ETHYL CYANOACRYLATE; TEMPERATURE FOR STORAGE = 36-46 DEG F;TEMPERATURE FOR SHIPPING = 36-46 DEG F;KEEP OUT OF DIRECT SUNLIGHT; COLOR: BLUE; PHYSICAL FORM: LIQUID; RATED DRYING TIME: 24.00 HOURS NOMINAL; SPECIFIC USAGE: THREAD LOCKING COMPOUND; QUANTITY WITHIN EACH UNIT PACKAGE: 20.00 GRAMS; G; Supplementary Features: 20 GRAM BOTTLE G. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6850-01-390-7555 still in active supply?

NSN 6850-01-390-7555 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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