PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

91-55916Inserter,seal

Brunswick Corp Dba Mercury Marine Div Mercury Marine · NSN 5120-01-524-9059 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-524-9059 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-524-9059. Primary manufacturer part number: 91-55916.
Features
  • Inserter,seal — FSC 5120
  • Functional Description: USED TO INSTALL OIL SEALS IN BEARING CARRIERS
  • 2 verified cross-references
  • Primary manufacturer: Brunswick Corp Dba Mercury Marine Div Mercury Marine
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Inserter,seal, cataloged under National Stock Number 5120-01-524-9059, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Brunswick Corp Dba Mercury Marine Div Mercury Marine. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-524-9059
Primary Part Number91-55916
Item NameInserter,seal
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBrunswick Corp Dba Mercury Marine Div Mercury Marine
StatusACTIVE
Functional DescriptionUSED TO INSTALL OIL SEALS IN BEARING CARRIERS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3040-00-322-5618SM-C-171360 INTERCHANGEABLE
Lever,manual Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2940-00-494-9492P10-2523 INTERCHANGEABLE
Baffle Assembly
Donaldson Company, Inc.
Cross-Reference Index
Part NumberManufacturer
55916 Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
91-55916 PRIMARY Brunswick Corp Dba Mercury Marine Div Mercury Marine (USA)
Related Parts
3040-00-322-5618INTERCHANGEABLE
LEVER,MANUAL CONTROL
SM-C-171360
2940-00-494-9492INTERCHANGEABLE
BAFFLE ASSEMBLY
P10-2523

Frequently Asked Questions

What is NSN 5120-01-524-9059?

NSN 5120-01-524-9059 is a Inserter,seal, manufactured by Brunswick Corp Dba Mercury Marine Div Mercury Marine, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-524-9059?

NSN 5120-01-524-9059 has 2 cross-referenced part numbers: 55916 (Brunswick Corp Dba Mercury Marine Div Mercury Marine), 91-55916 (Brunswick Corp Dba Mercury Marine Div Mercury Marine).

What NSN replaces 5120-01-524-9059?

There are 2 known substitutes for 5120-01-524-9059: 3040-00-322-5618, 2940-00-494-9492. Verify interchangeability with system specifications before substitution.

What are the specifications of 91-55916?

Key specifications for 91-55916: End Item Identification: MERCURY MARINE BRAVO ONE, BRAVO TWO AND TR DRIVE UNITS; Functional Description: USED TO INSTALL OIL SEALS IN BEARING CARRIERS. 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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