PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

QQ-C-576BGasket

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5330-00-256-0711 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-256-0711 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-256-0711. Primary manufacturer part number: QQ-C-576B.
Features
  • Gasket — FSC 5330
  • Material: COPPER ALLOY OVERALL
  • Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN
  • Aperture Diameter: 1.630 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
  • Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR METAL
  • Style Designator: CIRCULAR
  • Outside Diameter: 1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Alloy Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-256-0711, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-256-0711
Primary Part NumberQQ-C-576B
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Cross-Sectional Thickness0.062 INCHES NOMINAL IN
Aperture Diameter1.630 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN
Material Document and ClassificationQQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR METAL
Style DesignatorCIRCULAR
Outside Diameter1.880 INCHES MINIMUM AND 1.900 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-171-805800093 INTERCHANGEABLE
Gasket
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5330-00-188-8282QQ-C-576B INTERCHANGEABLE
Gasket
Naval Ship Systems Command
5330-00-197-5275GKT613 INTERCHANGEABLE
Gasket
Struthers Wells Corp
5330-00-292-1658159370PC2 INTERCHANGEABLE
Gasket
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
QQ-C-576B Federal Specifications Promulgated by General Services Administration Washington DC (USA)
228836PC25 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5330-00-171-8058INTERCHANGEABLE
GASKET
00093
5330-00-188-8282INTERCHANGEABLE
GASKET
QQ-C-576B
5330-00-197-5275INTERCHANGEABLE
GASKET
GKT613
5330-00-292-1658INTERCHANGEABLE
GASKET
159370PC2

Frequently Asked Questions

What is NSN 5330-00-256-0711?

NSN 5330-00-256-0711 is a Gasket, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-256-0711?

NSN 5330-00-256-0711 has 2 cross-referenced part numbers: QQ-C-576B (Federal Specifications Promulgated by General Services Administration Washington DC), 228836PC25 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5330-00-256-0711?

There are 4 known substitutes for 5330-00-256-0711: 5330-00-171-8058, 5330-00-188-8282, 5330-00-197-5275 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of QQ-C-576B?

Key specifications for QQ-C-576B: Material: COPPER ALLOY OVERALL; Cross-Sectional Thickness: 0.062 INCHES NOMINAL IN; Aperture Diameter: 1.630 INCHES MINIMUM AND 1.650 INCHES MAXIMUM IN; Material Document and Classification: QQ-C-576 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com