PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6338Seal,grease

Pdi Ground Support Systems, Inc. · NSN 5330-00-990-4000 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-990-4000 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-990-4000. Primary manufacturer part number: 6338.
Features
  • Seal,grease — FSC 5330
  • 2 verified cross-references
  • Primary manufacturer: Pdi Ground Support Systems, Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,grease, cataloged under National Stock Number 5330-00-990-4000, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pdi Ground Support Systems, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeal,grease
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersPdi Ground Support Systems, Inc. (CAGE 0W357)
Technical Specifications
ParameterValue
NSN5330-00-990-4000
Primary Part Number6338
Item NameSeal,grease
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerPdi Ground Support Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-144-898810-16666 INTERCHANGEABLE
Bearing,ball,annular
Precision Aerospace Corporation Dba Precision Engine Control
5310-00-193-7486 INTERCHANGEABLE
Washer,lock
5310-00-209-12182239HX INTERCHANGEABLE
Washer,lock
Oshkosh Defense Llc
8345-00-233-1756 INTERCHANGEABLE
Flag,national
5945-00-238-4522121000 INTERCHANGEABLE
Solenoid,electrical
Sai Industries Div Standard Armament Inc.
8345-00-247-0363 INTERCHANGEABLE
Flag,national
8345-00-261-2935 INTERCHANGEABLE
Flag,national
8345-00-264-2600 INTERCHANGEABLE
Flag,national
5315-00-271-692922-4-2-5 INTERCHANGEABLE
Pin,grooved,headless
Lockheed Martin Corporation Div Rotary and Mission Systems
5210-00-356-4458 INTERCHANGEABLE
Gage,camera Spool
Cross-Reference Index
Part NumberManufacturer
12-1000 Pdi Ground Support Systems, Inc. (USA)
6338 PRIMARY Pdi Ground Support Systems, Inc. (USA)
Related Parts
3110-00-144-8988INTERCHANGEABLE
BEARING,BALL,ANNULAR
10-16666
5310-00-193-7486INTERCHANGEABLE
WASHER,LOCK
5310-00-209-1218INTERCHANGEABLE
WASHER,LOCK
2239HX
8345-00-233-1756INTERCHANGEABLE
FLAG,NATIONAL
5945-00-238-4522INTERCHANGEABLE
SOLENOID,ELECTRICAL
121000
8345-00-247-0363INTERCHANGEABLE
FLAG,NATIONAL
8345-00-261-2935INTERCHANGEABLE
FLAG,NATIONAL
8345-00-264-2600INTERCHANGEABLE
FLAG,NATIONAL
5315-00-271-6929INTERCHANGEABLE
PIN,GROOVED,HEADLESS
22-4-2-5
5210-00-356-4458INTERCHANGEABLE
GAGE,CAMERA SPOOL
4730-00-370-8509INTERCHANGEABLE
NUT,TUBE COUPLING
A6338
5310-00-489-8850INTERCHANGEABLE
NUT,PLAIN,HEXAGON

Frequently Asked Questions

What is NSN 5330-00-990-4000?

NSN 5330-00-990-4000 is a Seal,grease, manufactured by Pdi Ground Support Systems, Inc., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-990-4000?

NSN 5330-00-990-4000 has 2 cross-referenced part numbers: 12-1000 (Pdi Ground Support Systems, Inc.), 6338 (Pdi Ground Support Systems, Inc.).

What NSN replaces 5330-00-990-4000?

There are 12 known substitutes for 5330-00-990-4000: 3110-00-144-8988, 5310-00-193-7486, 5310-00-209-1218 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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