PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5259E0PC43Gasket

Mark Controls Corp Pacific Valves Div · NSN 5330-00-901-0663 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-901-0663 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-901-0663. Primary manufacturer part number: 5259E0PC43.
Features
  • Gasket — FSC 5330
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Mark Controls Corp Pacific Valves Div
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Gasket, cataloged under National Stock Number 5330-00-901-0663, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mark Controls Corp Pacific Valves Div. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, 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
NSN5330-00-901-0663
Primary Part Number5259E0PC43
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMark Controls Corp Pacific Valves Div
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5950-00-645-5396324C547 INTERCHANGEABLE
Transformer,discriminator
General Dynamics Mission Systems, Inc. Dba Gdms
5930-00-711-5958668440-1 INTERCHANGEABLE
Switch,pressure
Lockheed Martin Corp
5315-01-160-040314037964 INTERCHANGEABLE
Pin,straight,headed
New Venture Gear Inc New Process Gear Div
5331-01-188-307115374 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corporation Dba Racor Division Div Racor Division
5950-01-417-204605016 INTERCHANGEABLE
Transformer,current
Magnetika Inc
5305-01-647-827815374 INTERCHANGEABLE
Screw,cap,hexagon Head
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
5259E0PC43 Mark Controls Corp Pacific Valves Div (USA)
15374 Mark Controls Corp Pacific Valves Div (USA)
1WM3-55 Mark Controls Corp Pacific Valves Div (USA)
1WG3-55 Mark Controls Corp Pacific Valves Div (USA)
Related Parts
5950-00-645-5396INTERCHANGEABLE
TRANSFORMER,DISCRIMINATOR
324C547
5930-00-711-5958INTERCHANGEABLE
SWITCH,PRESSURE
668440-1
5315-01-160-0403INTERCHANGEABLE
PIN,STRAIGHT,HEADED
14037964
5331-01-188-3071INTERCHANGEABLE
O-RING
15374
5950-01-417-2046INTERCHANGEABLE
TRANSFORMER,CURRENT
05016
5305-01-647-8278INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
15374

Frequently Asked Questions

What is NSN 5330-00-901-0663?

NSN 5330-00-901-0663 is a Gasket, manufactured by Mark Controls Corp Pacific Valves Div, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-901-0663?

NSN 5330-00-901-0663 has 4 cross-referenced part numbers: 5259E0PC43 (Mark Controls Corp Pacific Valves Div), 15374 (Mark Controls Corp Pacific Valves Div), 1WM3-55 (Mark Controls Corp Pacific Valves Div), 1WG3-55 (Mark Controls Corp Pacific Valves Div).

What NSN replaces 5330-00-901-0663?

There are 6 known substitutes for 5330-00-901-0663: 5950-00-645-5396, 5930-00-711-5958, 5315-01-160-0403 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5259E0PC43?

Key specifications for 5259E0PC43: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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