PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21051Gasket

Sealcraft Corporation · NSN 5330-00-641-6518 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-641-6518 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-641-6518. Primary manufacturer part number: 21051.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Aperture Diameter: 1.812 INCHES NOMINAL IN
  • Material: PAPER OVERALL
  • Outside Edge to Bolt Hole Center Distance Along Length: 0.281 INCHES NOMINAL IN
  • Outside Edge to Bolt Hole Center Distance Along Width: 0.281 INCHES NOMINAL IN
  • Center to Center Distance Between Bolt Holes Along Length: 1.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Bolt Hole Quantity: 4
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Paper Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-641-6518, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sealcraft Corporation. Government technical data includes 12 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-641-6518
Primary Part Number21051
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSealcraft Corporation
StatusACTIVE
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Aperture Diameter1.812 INCHES NOMINAL IN
MaterialPAPER OVERALL
Outside Edge to Bolt Hole Center Distance Along Length0.281 INCHES NOMINAL IN
Outside Edge to Bolt Hole Center Distance Along Width0.281 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Length1.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Bolt Hole Quantity4
Outside Corner Radius0.281 INCHES NOMINAL IN
Style DesignatorNON-CIRCULAR
Cross-Sectional Thickness0.031 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Width1.938 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Hole Diameter0.281 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5895-00-027-6780 INTERCHANGEABLE
Amplifier-Power Supply
3110-00-100-0329572 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3110-00-227-3253MS51961-30 INTERCHANGEABLE
Bearing,roller,needle
American Society for Testing and Materials Dba Astm International
5950-00-252-2562K7890666P1 INTERCHANGEABLE
Coil,radio Frequency
General Electric Company
5935-00-402-11533180-2242-00 INTERCHANGEABLE
Adapter,connector
Tyco Electronics Corp
5310-00-434-722521051 INTERCHANGEABLE
Washer,lock
Trevose Industrial Products Inc
3110-00-799-49036700213 INTERCHANGEABLE
Roller,bearing
General Motors Corp
5905-00-853-48638192923 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Us Army Aviation and Missile Command
6680-00-882-7041 INTERCHANGEABLE
Indicator,liquid Quantity
3110-01-009-7462 INTERCHANGEABLE
Bearing
Cross-Reference Index
Part NumberManufacturer
21051 PRIMARY Sealcraft Corporation (USA)
Related Parts
5895-00-027-6780INTERCHANGEABLE
AMPLIFIER-POWER SUPPLY
3110-00-100-0329INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
572
3110-00-227-3253INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
MS51961-30
5950-00-252-2562INTERCHANGEABLE
COIL,RADIO FREQUENCY
K7890666P1
5935-00-402-1153INTERCHANGEABLE
ADAPTER,CONNECTOR
3180-2242-00
5310-00-434-7225INTERCHANGEABLE
WASHER,LOCK
21051
3110-00-799-4903INTERCHANGEABLE
ROLLER,BEARING
6700213
5905-00-853-4863INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
8192923
6680-00-882-7041INTERCHANGEABLE
INDICATOR,LIQUID QUANTITY
3110-01-009-7462INTERCHANGEABLE
BEARING
4820-01-045-0430INTERCHANGEABLE
VALVE,FLOW CONTROL
5962-01-098-2324INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM121H/883B

Frequently Asked Questions

What is NSN 5330-00-641-6518?

NSN 5330-00-641-6518 is a Gasket, manufactured by Sealcraft Corporation, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-641-6518?

NSN 5330-00-641-6518 has 1 cross-referenced part number: 21051 (Sealcraft Corporation).

What NSN replaces 5330-00-641-6518?

There are 12 known substitutes for 5330-00-641-6518: 5895-00-027-6780, 3110-00-100-0329, 3110-00-227-3253 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21051?

Key specifications for 21051: Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Aperture Diameter: 1.812 INCHES NOMINAL IN; Material: PAPER OVERALL; Outside Edge to Bolt Hole Center Distance Along Length: 0.281 INCHES NOMINAL IN. 14 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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