PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ST7M340-600Packing,preformed

The Boeing Company Div Defense · NSN 5330-00-352-0521 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-352-0521 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-352-0521. Primary manufacturer part number: ST7M340-600.
Features
  • Packing,preformed — FSC 5330
  • Peripheral Diameter: 7.180 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SQUARE/RECTANGULAR
  • Center Hole Diameter: 6.000 INCHES NOMINAL IN
  • Material: RUBBER SILICONE CLASS Q AND GLASS OVERALL
  • Cross-Sectional Height: 0.490 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: The Boeing Company Div Defense
Applications
  • Applications requiring Rubber Silicone Class Q and Glass Overall construction
General Description

The Packing,preformed, cataloged under National Stock Number 5330-00-352-0521, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-352-0521
Primary Part NumberST7M340-600
Item NamePacking,preformed
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Peripheral Diameter7.180 INCHES NOMINAL IN
Cross-Sectional Shape StyleSQUARE/RECTANGULAR
Center Hole Diameter6.000 INCHES NOMINAL IN
MaterialRUBBER SILICONE CLASS Q AND GLASS OVERALL
Cross-Sectional Height0.490 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5950-00-477-8790 INTERCHANGEABLE
Coil,radio Frequency
2910-01-290-4402701472 INTERCHANGEABLE
Pump,fuel,metering and Distribut
Kongsberg Maritime Inc Dba Kongsberg Maritime Inc
7025-01-391-9266A3092942-6 INTERCHANGEABLE
Disk Drive Unit
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
Cross-Reference Index
Part NumberManufacturer
ST7M340-600 PRIMARY The Boeing Company Div Defense (USA)
501-600 Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc (USA)
Related Parts
5950-00-477-8790INTERCHANGEABLE
COIL,RADIO FREQUENCY
2910-01-290-4402INTERCHANGEABLE
PUMP,FUEL,METERING AND DISTRIBUT
701472
7025-01-391-9266INTERCHANGEABLE
DISK DRIVE UNIT
A3092942-6

Frequently Asked Questions

What is NSN 5330-00-352-0521?

NSN 5330-00-352-0521 is a Packing,preformed, manufactured by The Boeing Company Div Defense, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-352-0521?

NSN 5330-00-352-0521 has 2 cross-referenced part numbers: ST7M340-600 (The Boeing Company Div Defense), 501-600 (Rsa Engineered Products, Llc Dba Rsa Engineered Products Llc).

What NSN replaces 5330-00-352-0521?

There are 3 known substitutes for 5330-00-352-0521: 5950-00-477-8790, 2910-01-290-4402, 7025-01-391-9266. Verify interchangeability with system specifications before substitution.

What are the specifications of ST7M340-600?

Key specifications for ST7M340-600: Peripheral Diameter: 7.180 INCHES NOMINAL IN; Cross-Sectional Shape Style: SQUARE/RECTANGULAR; Center Hole Diameter: 6.000 INCHES NOMINAL IN; Material: RUBBER SILICONE CLASS Q AND GLASS OVERALL. 5 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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