PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

511776Seal Ring,metal

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5330-00-943-7681 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-943-7681 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-943-7681. Primary manufacturer part number: 511776.
Features
  • Seal Ring,metal — FSC 5330
  • Material: STEEL OVERALL
  • Metallic Hardness Rating: 44.0 MINIMUM ROCKWELL C AND 52.0 MAXIMUM ROCKWELL C
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE
  • Outside Diameter: 6.180 INCHES NOMINAL IN
  • Largest Radial Wall Thickness: 0.290 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OVERALL
  • Ring Style: EXPANDING ECCENTRIC
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Overall construction
General Description

The Seal Ring,metal, cataloged under National Stock Number 5330-00-943-7681, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 7 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-943-7681
Primary Part Number511776
Item NameSeal Ring,metal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusACTIVE
MaterialSTEEL OVERALL
Metallic Hardness Rating44.0 MINIMUM ROCKWELL C AND 52.0 MAXIMUM ROCKWELL C
Cross-Sectional Shape StylePLAIN RECTANGULAR, STRAIGHT FACE
Outside Diameter6.180 INCHES NOMINAL IN
Largest Radial Wall Thickness0.290 INCHES NOMINAL IN
Surface TreatmentCADMIUM OVERALL
Ring StyleEXPANDING ECCENTRIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
1630-00-247-4623511776 INTERCHANGEABLE
Cap,grease
Meggitt Aircraft Braking Systems Corporation
6515-01-590-2665511.776 INTERCHANGEABLE
Attachment,torque Limiting,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
511776 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
1630-00-247-4623INTERCHANGEABLE
CAP,GREASE
511776
6515-01-590-2665INTERCHANGEABLE
ATTACHMENT,TORQUE LIMITING,BONE
511.776

Frequently Asked Questions

What is NSN 5330-00-943-7681?

NSN 5330-00-943-7681 is a Seal Ring,metal, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-943-7681?

NSN 5330-00-943-7681 has 1 cross-referenced part number: 511776 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5330-00-943-7681?

There are 2 known substitutes for 5330-00-943-7681: 1630-00-247-4623, 6515-01-590-2665. Verify interchangeability with system specifications before substitution.

What are the specifications of 511776?

Key specifications for 511776: Material: STEEL OVERALL; Metallic Hardness Rating: 44.0 MINIMUM ROCKWELL C AND 52.0 MAXIMUM ROCKWELL C; Cross-Sectional Shape Style: PLAIN RECTANGULAR, STRAIGHT FACE; Outside Diameter: 6.180 INCHES NOMINAL IN. 8 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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