PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3251409PC661Gasket,spiral Wound

Naval Ship Systems Command · NSN 5330-00-872-3991 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-872-3991 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-872-3991. Primary manufacturer part number: 3251409PC661.
Features
  • Gasket,spiral Wound — FSC 5330
  • Material Document and Classification: MIL-P-24503 MIL SPEC 2ND MATERIAL RESPONSE SPIRAL WOUND FILLER
  • Reference Number Differentiating Characteristics: AS DIFFERENTITED BY DIMENSIONS
  • Cross-Sectional Thickness: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
  • Material: STEEL AND GRAPHITE OR STEEL AND CHLORITE SPIRAL WOUND FILLER
  • Aperture Diameter: 1.078 INCHES NOMINAL1.078 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: METAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
  • Style Designator: CIRCULAR
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 5330-00-872-3991, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 8 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-872-3991
Primary Part Number3251409PC661
Item NameGasket,spiral Wound
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Material Document and ClassificationMIL-P-24503 MIL SPEC 2ND MATERIAL RESPONSE SPIRAL WOUND FILLER
Reference Number Differentiating CharacteristicsAS DIFFERENTITED BY DIMENSIONS
Cross-Sectional Thickness0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN
MaterialSTEEL AND GRAPHITE OR STEEL AND CHLORITE SPIRAL WOUND FILLER
Aperture Diameter1.078 INCHES NOMINAL1.078 INCHES NOMINAL IN
Cross-Sectional Shape StyleMETAL WINDING W/ SOFT FILLERMETAL WINDING W/ SOFT FILLER
Style DesignatorCIRCULAR
Outside Diameter1.546 INCHES NOMINAL1.546 INCHES NOMINAL IN
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
5330-00-306-1128 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
5330-01-379-5982 INTERCHANGEABLE
Gasket,spiral Wound
5330-01-392-3346803-5959278-027 INTERCHANGEABLE
Gasket,spiral Wound
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
3251409PC661 Naval Ship Systems Command (USA)
MIL-G-15342 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
803-5959278 Naval Sea Systems Command (USA)
NY540147MPC661 Amec Foster Wheeler North America Corp. Dba Foster Wheeler (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
5330-00-306-1128INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-599-5782INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-00-862-9391INTERCHANGEABLE
GASKET,SPIRAL WOUND
803-5959278
5330-01-379-5982INTERCHANGEABLE
GASKET,SPIRAL WOUND
5330-01-392-3346INTERCHANGEABLE
GASKET,SPIRAL WOUND
803-5959278-027

Frequently Asked Questions

What is NSN 5330-00-872-3991?

NSN 5330-00-872-3991 is a Gasket,spiral Wound, manufactured by Naval Ship Systems Command, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-872-3991?

NSN 5330-00-872-3991 has 4 cross-referenced part numbers: 3251409PC661 (Naval Ship Systems Command), MIL-G-15342 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 803-5959278 (Naval Sea Systems Command), NY540147MPC661 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler).

What NSN replaces 5330-00-872-3991?

There are 10 known substitutes for 5330-00-872-3991: 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 3251409PC661?

Key specifications for 3251409PC661: Material Document and Classification: MIL-P-24503 MIL SPEC 2ND MATERIAL RESPONSE SPIRAL WOUND FILLER; Reference Number Differentiating Characteristics: AS DIFFERENTITED BY DIMENSIONS; Cross-Sectional Thickness: 0.175 INCHES NOMINAL0.175 INCHES NOMINAL IN; Material: STEEL AND GRAPHITE OR STEEL AND CHLORITE SPIRAL WOUND FILLER. 9 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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