PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21744Sealing Compound

Loctite Corp · NSN 8030-01-671-2388 · FSC 8030 · No Item Name Available
Verified by PartsTable
NSN 8030-01-671-2388 — this item is cataloged by the U.S. Government under National Stock Number 8030-01-671-2388. Primary manufacturer part number: 21744.
Features
  • Sealing Compound — FSC 8030
  • Physical Form: PASTE
  • Material: SILICONE
  • Quantity Within Each Unit Package: 300.00 MILLILITERS
  • Color: GRAY/GREY
  • 1 verified cross-reference
  • Primary manufacturer: Loctite Corp
Applications
  • Applications requiring Silicone construction
General Description

The Sealing Compound, cataloged under National Stock Number 8030-01-671-2388, is classified within Federal Supply Class 8030 (No Item Name Available) of the Brushes, Paints, Sealers, and Adhesives group. The primary manufacturer of record is Loctite Corp. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN8030-01-671-2388
Primary Part Number21744
Item NameSealing Compound
FSC / FSG8030 / 80 — No Item Name Available
ManufacturerLoctite Corp
StatusACTIVE
Physical FormPASTE
MaterialSILICONE
Quantity Within Each Unit Package300.00 MILLILITERS
ColorGRAY/GREY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-144-8869R-200ZZSD502RDA1P15LY48U INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Precision Division
6650-00-342-644721744 INTERCHANGEABLE
Collimator
Contraves Inc
8415-00-507-0062 INTERCHANGEABLE
Gloves,men's
8415-00-516-0707 INTERCHANGEABLE
Gloves,men's
5340-00-623-541021744 INTERCHANGEABLE
Plunger
Mason Electric Co. Dba Mason Controls
4730-00-817-6578ANSI/ASME B16.15 1/2X3/8MPT INTERCHANGEABLE
Bushing,pipe
American National Standards Institute Incorporated Dba American National Standards Institute
1630-01-561-49632-1744 INTERCHANGEABLE
Brake,multiple Disk
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
4810-01-595-5096 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Cross-Reference Index
Part NumberManufacturer
21744 PRIMARY Loctite Corp (USA)
Related Parts
3110-00-144-8869INTERCHANGEABLE
BEARING,BALL,ANNULAR
R-200ZZSD502RDA1P15LY48U
6650-00-342-6447INTERCHANGEABLE
COLLIMATOR
21744
8415-00-507-0062INTERCHANGEABLE
GLOVES,MEN'S
8415-00-516-0707INTERCHANGEABLE
GLOVES,MEN'S
5340-00-623-5410INTERCHANGEABLE
PLUNGER
21744
4730-00-817-6578INTERCHANGEABLE
BUSHING,PIPE
ANSI/ASME B16.15 1/2X3/8MPT
1630-01-561-4963INTERCHANGEABLE
BRAKE,MULTIPLE DISK
2-1744
4810-01-595-5096INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE

Frequently Asked Questions

What is NSN 8030-01-671-2388?

NSN 8030-01-671-2388 is a Sealing Compound, manufactured by Loctite Corp, classified under FSC 8030 (No Item Name Available). Status: active.

What are the part numbers for NSN 8030-01-671-2388?

NSN 8030-01-671-2388 has 1 cross-referenced part number: 21744 (Loctite Corp).

What NSN replaces 8030-01-671-2388?

There are 8 known substitutes for 8030-01-671-2388: 3110-00-144-8869, 6650-00-342-6447, 8415-00-507-0062 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21744?

Key specifications for 21744: Part Name Assigned by Controlling Agency: LOCTITE SI5999 SEALANT; Special Features: PHYSICAL STATE: PASTE; COLOR: GRAY; ODOR: MILD; VAPOR PRESSURE: <5.00 MM HG; SPECIFIC GRAVITY: 1.5; VAPOR DENSITY: HEAVIER THAN AIR; FLASH POINT: >93.00 DEG. C; SOLUBILITY: POLYMERISES IN PRESENCE OF WATER; VOC CONTENT: 4.16%; AVOID WATER; INCOMPATIBLE MATERIALS: POLYMERISES ON CONTACT WITH WATER; OXIDIZING AGENTS: ACIDS AND BASES; HAZARDOUS DECOMPOSITION PRODUCTS: FORMALDEHYDE, METHYL ETHYL KETOXIME FORMED DURING CURE; OXIDES OF SILICON, OXIDES OF CARBBON MM; Physical Form: PASTE; End Item Identification: 2355-01-616-9288; MEDIUM MINE PROTECTED VEHICLE - MMPV. 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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