PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

648691Gasket

Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division · NSN 5330-00-850-7731 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-850-7731 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-850-7731. Primary manufacturer part number: 648691.
Features
  • Gasket — FSC 5330
  • Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: ALUMINUM ALLOY 6061 OVERALL
  • Cross-Sectional Thickness: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
  • Outside Diameter: 6.680 INCHES NOMINAL IN
  • Surface Treatment: ANODIZE OVERALL
  • Hole Diameter: 0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
  • Bolt Circle Diameter: 5.750 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-850-7731, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-850-7731
Primary Part Number648691
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division
StatusACTIVE
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialALUMINUM ALLOY 6061 OVERALL
Cross-Sectional Thickness0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
Outside Diameter6.680 INCHES NOMINAL IN
Surface TreatmentANODIZE OVERALL
Hole Diameter0.289 INCHES MINIMUM AND 0.296 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Bolt Circle Diameter5.750 INCHES NOMINAL IN
Cross-Sectional Shape StyleMETAL
Material Document and ClassificationQQ-A-250/11 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Temp Rating-65.0 FAHRENHEIT AND 350.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3030-00-870-9979 INTERCHANGEABLE
Belt,v
6680-01-081-780340167 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
5325-01-266-930140167 INTERCHANGEABLE
Ring,retaining
L & R Manufacturing Company
2590-01-532-225740167 INTERCHANGEABLE
Bar,rescue
Summit Tool Company
5310-01-551-852741755 INTERCHANGEABLE
Nut,self-Locking,hexagon
Barnes Group Inc. Dba Barnes Distribution
5330-01-611-292540167 INTERCHANGEABLE
Gasket
Cowles Operating Company Dba Carlin Combustion Technology Div Carlin Combustion Technologies
Cross-Reference Index
Part NumberManufacturer
C451-1 Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company (USA)
648691 PRIMARY Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
40167 Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp (USA)
CA3971 PRIMARY Stillman Seal Corporation Div Stillman Seal Corperation (USA)
Related Parts
3030-00-870-9979INTERCHANGEABLE
BELT,V
6680-01-081-7803INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
40167
5325-01-266-9301INTERCHANGEABLE
RING,RETAINING
40167
2590-01-532-2257INTERCHANGEABLE
BAR,RESCUE
40167
5310-01-551-8527INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
41755
5330-01-611-2925INTERCHANGEABLE
GASKET
40167

Frequently Asked Questions

What is NSN 5330-00-850-7731?

NSN 5330-00-850-7731 is a Gasket, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-850-7731?

NSN 5330-00-850-7731 has 4 cross-referenced part numbers: C451-1 (Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company), 648691 (Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division), 40167 (Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp), CA3971 (Stillman Seal Corporation Div Stillman Seal Corperation).

What NSN replaces 5330-00-850-7731?

There are 6 known substitutes for 5330-00-850-7731: 3030-00-870-9979, 6680-01-081-7803, 5325-01-266-9301 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 648691?

Key specifications for 648691: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: ALUMINUM ALLOY 6061 OVERALL; Cross-Sectional Thickness: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Outside Diameter: 6.680 INCHES NOMINAL IN. 10 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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