PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2561LGasket

Knappco Corporation Dba Civacon · NSN 5330-01-417-6477 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-417-6477 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-417-6477. Primary manufacturer part number: 2561L.
Features
  • Gasket — FSC 5330
  • Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
  • Cross-Sectional Thickness: 0.125 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Outside Diameter: 10.875 INCHES NOMINAL IN
  • Aperture Diameter: 0.588 INCHES NOMINAL IN
  • Style Designator: CIRCULAR
  • Color: BLACK
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-01-417-6477, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Knappco Corporation Dba Civacon. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references 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
NSN5330-01-417-6477
Primary Part Number2561L
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerKnappco Corporation Dba Civacon
StatusACTIVE
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Cross-Sectional Thickness0.125 INCHES NOMINAL IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Outside Diameter10.875 INCHES NOMINAL IN
Aperture Diameter0.588 INCHES NOMINAL IN
Style DesignatorCIRCULAR
ColorBLACK
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-010-7823 INTERCHANGEABLE
Nut,stamped
5310-00-034-8651 INTERCHANGEABLE
Nut,stamped
5325-00-080-3487 INTERCHANGEABLE
Grommet,nonmetallic
6220-00-115-50400256001WHT INTERCHANGEABLE
Lens,light
Perko Inc
5915-00-201-7090 INTERCHANGEABLE
Filter,low Pass
5325-00-276-605112608653 INTERCHANGEABLE
Grommet,nonmetallic
U S Army Tank Automotive Command Amsta-Im-Mm
5330-00-625-43422561 INTERCHANGEABLE
Gasket
Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp
2520-00-709-58975331800 INTERCHANGEABLE
Gage,oil Pressure,t
U S Army Tank Automotive Command Amsta-Im-Mm
5895-01-097-3243 INTERCHANGEABLE
Controller,disk Dri
5325-01-142-32092561 INTERCHANGEABLE
Grommet,nonmetallic
Dcm Manufacturing, Inc.
Cross-Reference Index
Part NumberManufacturer
2561 Knappco Corporation Dba Civacon (USA)
2561L PRIMARY Knappco Corporation Dba Civacon (USA)
Related Parts
5310-00-010-7823INTERCHANGEABLE
NUT,STAMPED
5310-00-034-8651INTERCHANGEABLE
NUT,STAMPED
5325-00-080-3487INTERCHANGEABLE
GROMMET,NONMETALLIC
6220-00-115-5040INTERCHANGEABLE
LENS,LIGHT
0256001WHT
5915-00-201-7090INTERCHANGEABLE
FILTER,LOW PASS
5325-00-276-6051INTERCHANGEABLE
GROMMET,NONMETALLIC
12608653
5330-00-625-4342INTERCHANGEABLE
GASKET
2561
2520-00-709-5897INTERCHANGEABLE
GAGE,OIL PRESSURE,T
5331800
5895-01-097-3243INTERCHANGEABLE
CONTROLLER,DISK DRI
5325-01-142-3209INTERCHANGEABLE
GROMMET,NONMETALLIC
2561
5310-01-373-2320INTERCHANGEABLE
WASHER,FLAT
5140-01-442-0991INTERCHANGEABLE
CASE,TOOL AND ACCESSORIES
2561

Frequently Asked Questions

What is NSN 5330-01-417-6477?

NSN 5330-01-417-6477 is a Gasket, manufactured by Knappco Corporation Dba Civacon, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-417-6477?

NSN 5330-01-417-6477 has 2 cross-referenced part numbers: 2561 (Knappco Corporation Dba Civacon), 2561L (Knappco Corporation Dba Civacon).

What NSN replaces 5330-01-417-6477?

There are 12 known substitutes for 5330-01-417-6477: 5310-00-010-7823, 5310-00-034-8651, 5325-00-080-3487 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2561L?

Key specifications for 2561L: Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL; Cross-Sectional Thickness: 0.125 INCHES NOMINAL IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 10.875 INCHES NOMINAL IN. 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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