PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N304-7-21Packing,preformed

Parker-Hannifin Corp Div O-Ring Division · NSN 5330-00-463-0731 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-463-0731 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-463-0731. Primary manufacturer part number: N304-7-21.
Features
  • Packing,preformed — FSC 5330
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • Center Hole Diameter: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
  • 3 verified cross-references
  • Primary manufacturer: Parker-Hannifin Corp Div O-Ring Division
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Packing,preformed, cataloged under National Stock Number 5330-00-463-0731, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corp Div O-Ring Division. Government technical data includes 2 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-463-0731
Primary Part NumberN304-7-21
Item NamePacking,preformed
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corp Div O-Ring Division
StatusACTIVE
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Center Hole Diameter4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5330-00-194-3739 INTERCHANGEABLE
Packing,preformed
5331-00-579-754454A126-243 INTERCHANGEABLE
O-Ring
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-579-754562309-29 INTERCHANGEABLE
O-Ring
Pti Technologies Inc.
Cross-Reference Index
Part NumberManufacturer
N304-7-21 Parker-Hannifin Corp Div O-Ring Division (USA)
AN6230-21 Aeronautical Standards Group Dept of Navy and Air Force (USA)
2-243 N304-75 Parker Hannifin Gmbh O-Ring Division (DEU)
Related Parts
5330-00-194-3739INTERCHANGEABLE
PACKING,PREFORMED
5331-00-579-7544INTERCHANGEABLE
O-RING
54A126-243
5331-00-579-7545INTERCHANGEABLE
O-RING
62309-29

Frequently Asked Questions

What is NSN 5330-00-463-0731?

NSN 5330-00-463-0731 is a Packing,preformed, manufactured by Parker-Hannifin Corp Div O-Ring Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-463-0731?

NSN 5330-00-463-0731 has 3 cross-referenced part numbers: N304-7-21 (Parker-Hannifin Corp Div O-Ring Division), AN6230-21 (Aeronautical Standards Group Dept of Navy and Air Force), 2-243 N304-75 (Parker Hannifin Gmbh O-Ring Division).

What NSN replaces 5330-00-463-0731?

There are 3 known substitutes for 5330-00-463-0731: 5330-00-194-3739, 5331-00-579-7544, 5331-00-579-7545. Verify interchangeability with system specifications before substitution.

What are the specifications of N304-7-21?

Key specifications for N304-7-21: Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN; Center Hole Diameter: 4.094 INCHES MINIMUM AND 4.124 INCHES MAXIMUM IN. 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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