PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

371-7186Plug,leakproof Seal

Caterpillar Inc Div Caterpillar Defense · NSN 5340-01-689-5304 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-689-5304 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-689-5304. Primary manufacturer part number: 371-7186.
Features
  • Plug,leakproof Seal — FSC 5340
  • 1 verified cross-reference
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Plug,leakproof Seal, cataloged under National Stock Number 5340-01-689-5304, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-689-5304
Primary Part Number371-7186
Item NamePlug,leakproof Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
6520-01-723-888235053 INTERCHANGEABLE
Holder,napkin,dental
Kerr Corporation
Cross-Reference Index
Part NumberManufacturer
371-7186 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
6520-01-723-8882INTERCHANGEABLE
HOLDER,NAPKIN,DENTAL
35053

Frequently Asked Questions

What is NSN 5340-01-689-5304?

NSN 5340-01-689-5304 is a Plug,leakproof Seal, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-689-5304?

NSN 5340-01-689-5304 has 1 cross-referenced part number: 371-7186 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 5340-01-689-5304?

There is 1 known substitute for 5340-01-689-5304: 6520-01-723-8882. Verify interchangeability with system specifications before substitution.

What are the specifications of 371-7186?

Key specifications for 371-7186: Special Features: PLUG WITH SEAL O-RING (214-7567) USED O FLYWHEEL HOUSING(197-5994) ON C9MARINE GENERATOR SET; Part Name Assigned by Controlling Agency: PLUG,LEAKPROOF SEAL. 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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