PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6591AA1Plug,protective,dust and Moistur

Niagara Plastics L.l.c. · NSN 5340-01-384-1120 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-384-1120 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-384-1120. Primary manufacturer part number: 6591AA1.
Features
  • Plug,protective,dust and Moistur — FSC 5340
  • Features Provided: SHOULDER
  • Material: RUBBER
  • Design Type: FRICTION
  • Overall Diameter: 0.750 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Niagara Plastics L.l.c.
Applications
  • Applications requiring Rubber construction
General Description

The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-384-1120, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Niagara Plastics L.l.c.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-384-1120
Primary Part Number6591AA1
Item NamePlug,protective,dust and Moistur
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerNiagara Plastics L.l.c.
StatusACTIVE
Features ProvidedSHOULDER
MaterialRUBBER
Design TypeFRICTION
Overall Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6515-00-385-2100 (0140)
HAZMATNo
Unit of IssueEA
Verified Substitutes 11
6515-00-385-21000140 SUCCESSOR
Catheter,rectal
C. R. Bard, Inc.
5306-01-198-1698659 SUCCESSOR
Bolt,machine
Sae International Dba Sae International
6625-00-063-1651659 INTERCHANGEABLE
Lead Set,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
3110-00-100-0668659 INTERCHANGEABLE
Cone and Rollers,tapered Roller
The Timken Corporation
5340-00-186-3977 INTERCHANGEABLE
Strap,retaining
5330-00-221-4138 INTERCHANGEABLE
Gasket
3230-00-266-962937-658 INTERCHANGEABLE
Knife,surfacer,woodworking
Delta Intl Machinery Corp
4130-01-198-0429065-00009 INTERCHANGEABLE
Ring
Johnson Controls Navy Systems, Llc
7530-01-285-8355659 INTERCHANGEABLE
Pad,writing Paper
National Industries for the Blind
5985-01-552-2492659 INTERCHANGEABLE
Tuner,transmission Line
Waveline Inc
Cross-Reference Index
Part NumberManufacturer
659 Niagara Plastics L.l.c. (USA)
12420305-001 Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA)
12420305-001 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
6591AA1 PRIMARY Niagara Plastics L.l.c. (USA)
Related Parts
SUCCESSOR 6515-00-385-2100 Catheter,rectal · 0140
5306-01-198-1698SUCCESSOR
BOLT,MACHINE
659
6625-00-063-1651INTERCHANGEABLE
LEAD SET,TEST
659
3110-00-100-0668INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
659
5340-00-186-3977INTERCHANGEABLE
STRAP,RETAINING
5330-00-221-4138INTERCHANGEABLE
GASKET
3230-00-266-9629INTERCHANGEABLE
KNIFE,SURFACER,WOODWORKING
37-658
4130-01-198-0429INTERCHANGEABLE
RING
065-00009
7530-01-285-8355INTERCHANGEABLE
PAD,WRITING PAPER
659
5985-01-552-2492INTERCHANGEABLE
TUNER,TRANSMISSION LINE
659
8120-01-597-5498INTERCHANGEABLE
CYLINDER,COMPRESSED GAS,NITROUS
659

Frequently Asked Questions

What is NSN 5340-01-384-1120?

NSN 5340-01-384-1120 is a Plug,protective,dust and Moistur, manufactured by Niagara Plastics L.l.c., classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-384-1120?

NSN 5340-01-384-1120 has 4 cross-referenced part numbers: 659 (Niagara Plastics L.l.c.), 12420305-001 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 12420305-001 (U S Army Tank Automotive Command Amsta-Im-Mm), 6591AA1 (Niagara Plastics L.l.c.).

What NSN replaces 5340-01-384-1120?

There are 11 known substitutes for 5340-01-384-1120: 6515-00-385-2100, 5306-01-198-1698, 6625-00-063-1651 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 6591AA1?

Key specifications for 6591AA1: Features Provided: SHOULDER; Material: RUBBER; Design Type: FRICTION; Overall Diameter: 0.750 INCHES NOMINAL IN. 4 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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