PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6521-101AGasket

Kirkhill Inc Div Kirkhill Inc, Haskon Division · NSN 5330-00-014-6157 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-014-6157 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-014-6157. Primary manufacturer part number: 6521-101A.
Features
  • Gasket — FSC 5330
  • Bolt Circle Diameter: 6.240 INCHES NOMINAL IN
  • Aperture Diameter: 3.730 INCHES NOMINAL IN
  • Hole Diameter: 0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
  • Material: ALUMINUM AND RUBBER SYNTHETIC OVERALL
  • Peripheral Flat Quantity: 6
  • Outside Corner Radius: 0.440 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Aluminum and Rubber Synthetic Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-014-6157, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kirkhill Inc Div Kirkhill Inc, Haskon Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, 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
NSN5330-00-014-6157
Primary Part Number6521-101A
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerKirkhill Inc Div Kirkhill Inc, Haskon Division
StatusACTIVE
Bolt Circle Diameter6.240 INCHES NOMINAL IN
Aperture Diameter3.730 INCHES NOMINAL IN
Hole Diameter0.490 INCHES MINIMUM AND 0.520 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
MaterialALUMINUM AND RUBBER SYNTHETIC OVERALL
Peripheral Flat Quantity6
Outside Corner Radius0.440 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-068-4622 INTERCHANGEABLE
Connector,plug,electrical
5330-00-494-9966 INTERCHANGEABLE
Seal,plain Encased
5960-00-810-3594 INTERCHANGEABLE
Electron Tube
3040-00-918-84476521 INTERCHANGEABLE
Shaft,pilot
Michigan Dynamics Inc
4820-01-011-92478Z-V8LR-B(P) INTERCHANGEABLE
Valve,globe
Parker-Hannifin Corp Div Instrumentation Products Division
3030-01-069-16546521 INTERCHANGEABLE
Belt,v
Gates Corporation
5945-01-272-6192231B233DQP1 INTERCHANGEABLE
Relay,hybrid
General Electric Company Dba Ge
5210-01-435-69456521 INTERCHANGEABLE
Dividers,mechanics'
Central Tools, Inc.
5985-01-524-57726521 INTERCHANGEABLE
Antenna Subassembly
Spectrum Control Inc Div Weinschel
6515-01-560-6983123128 INTERCHANGEABLE
Airway,nasopharyngeal
Teleflex Llc
Cross-Reference Index
Part NumberManufacturer
6521 Kirkhill Inc Div Kirkhill Inc, Haskon Division (USA)
6521 Kirkhill Ta Haskon Div (USA)
4P94509-101A Lockheed Martin Corp (USA)
6521-101A PRIMARY Kirkhill Inc Div Kirkhill Inc, Haskon Division (USA)
Related Parts
5935-00-068-4622INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
5330-00-494-9966INTERCHANGEABLE
SEAL,PLAIN ENCASED
5960-00-810-3594INTERCHANGEABLE
ELECTRON TUBE
3040-00-918-8447INTERCHANGEABLE
SHAFT,PILOT
6521
4820-01-011-9247INTERCHANGEABLE
VALVE,GLOBE
8Z-V8LR-B(P)
3030-01-069-1654INTERCHANGEABLE
BELT,V
6521
5945-01-272-6192INTERCHANGEABLE
RELAY,HYBRID
231B233DQP1
5210-01-435-6945INTERCHANGEABLE
DIVIDERS,MECHANICS'
6521
5985-01-524-5772INTERCHANGEABLE
ANTENNA SUBASSEMBLY
6521
6515-01-560-6983INTERCHANGEABLE
AIRWAY,NASOPHARYNGEAL
123128
4940-01-572-4234INTERCHANGEABLE
LEAK DETECTOR,REFRIGERANT GAS
6521
4730-01-649-9025INTERCHANGEABLE
ADAPTER BUSHING
652-1

Frequently Asked Questions

What is NSN 5330-00-014-6157?

NSN 5330-00-014-6157 is a Gasket, manufactured by Kirkhill Inc Div Kirkhill Inc, Haskon Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-014-6157?

NSN 5330-00-014-6157 has 4 cross-referenced part numbers: 6521 (Kirkhill Inc Div Kirkhill Inc, Haskon Division), 6521 (Kirkhill Ta Haskon Div), 4P94509-101A (Lockheed Martin Corp), 6521-101A (Kirkhill Inc Div Kirkhill Inc, Haskon Division).

What NSN replaces 5330-00-014-6157?

There are 12 known substitutes for 5330-00-014-6157: 5935-00-068-4622, 5330-00-494-9966, 5960-00-810-3594 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6521-101A?

Key specifications for 6521-101A: Overall Width: 6.280 INCHES NOMINAL IN; Overall Length: 7.120 INCHES NOMINAL IN; Bolt Circle Diameter: 6.240 INCHES NOMINAL IN; Aperture Diameter: 3.730 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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