PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-5959278Gasket,spiral Wound

Naval Sea Systems Command · NSN 5330-00-306-1128 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-306-1128 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-306-1128. Primary manufacturer part number: 803-5959278.
Features
  • Gasket,spiral Wound — FSC 5330
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY DIMENSIONS
  • Bearing Surface Width: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
  • Aperture Width: 3.375 INCHES NOMINAL3.375 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
  • Aperture Length: 3.750 INCHES NOMINAL3.750 INCHES NOMINAL IN
  • Material: STEEL AND GRAPHITE OR STEEL AND CHLORITE SPIRAL WOUND FILLER
  • Style Designator: DIAMOND
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel and Graphite or Steel and Chlorite Spiral Wound Filler construction
General Description

The Gasket,spiral Wound, cataloged under National Stock Number 5330-00-306-1128, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-306-1128
Primary Part Number803-5959278
Item NameGasket,spiral Wound
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY DIMENSIONS
Bearing Surface Width0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
Aperture Width3.375 INCHES NOMINAL3.375 INCHES NOMINAL IN
Cross-Sectional Thickness0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN
Aperture Length3.750 INCHES NOMINAL3.750 INCHES NOMINAL IN
MaterialSTEEL AND GRAPHITE OR STEEL AND CHLORITE SPIRAL WOUND FILLER
Style DesignatorDIAMOND
Material Document and ClassificationMIL-P-24503 MIL SPEC 2ND MATERIAL RESPONSE SPIRAL WOUND FILLER
Cross-Sectional Shape StyleMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
Nondefinitive Spec/std Data1 CLASS AND 1500 SERIES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5330-00-186-4091 INTERCHANGEABLE
Gasket,spiral Wound
5330-00-186-4092 INTERCHANGEABLE
Gasket,spiral Wound
5330-00-186-4100 INTERCHANGEABLE
Gasket,spiral Wound
5330-00-196-6988 INTERCHANGEABLE
Gasket
5330-00-285-3464 INTERCHANGEABLE
Gasket,spiral Wound
5330-00-599-5782 INTERCHANGEABLE
Gasket,spiral Wound
5330-00-862-9391803-5959278 INTERCHANGEABLE
Gasket,spiral Wound
Naval Sea Systems Command
5330-00-872-3991 INTERCHANGEABLE
Gasket,spiral Wound
5330-01-379-5982 INTERCHANGEABLE
Gasket,spiral Wound
5330-01-392-3346803-5959278-027 INTERCHANGEABLE
Gasket,spiral Wound
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
803-5959278 Naval Sea Systems Command (USA)
MIL-G-15342 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MX292718-842 Babcock & Wilcox Co (USA)
Related Parts
5330-00-186-4091INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-186-4092INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-186-4100INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-196-6988INTERCHANGEABLE
GASKET
5330-00-285-3464INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-599-5782INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-862-9391INTERCHANGEABLE
GASKET,SPIRAL WOUND
803-5959278
5330-00-872-3991INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-01-379-5982INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-01-392-3346INTERCHANGEABLE
GASKET,SPIRAL WOUND
803-5959278-027

Frequently Asked Questions

What is NSN 5330-00-306-1128?

NSN 5330-00-306-1128 is a Gasket,spiral Wound, manufactured by Naval Sea Systems Command, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-306-1128?

NSN 5330-00-306-1128 has 3 cross-referenced part numbers: 803-5959278 (Naval Sea Systems Command), MIL-G-15342 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MX292718-842 (Babcock & Wilcox Co).

What NSN replaces 5330-00-306-1128?

There are 10 known substitutes for 5330-00-306-1128: 5330-00-186-4091, 5330-00-186-4092, 5330-00-186-4100 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-5959278?

Key specifications for 803-5959278: Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY DIMENSIONS; Bearing Surface Width: 0.125 INCHES NOMINAL0.125 INCHES NOMINAL IN; Aperture Width: 3.375 INCHES NOMINAL3.375 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.125 INCHES NOMINAL0.125 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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