PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51787Bumper

Tennant Company · NSN 5340-01-140-0378 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-140-0378 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-140-0378. Primary manufacturer part number: 51787.
Features
  • Bumper — FSC 5340
  • Groove Diameter: 0.281 INCHES NOMINAL IN
  • Bottom Flange Diameter: 0.438 INCHES NOMINAL IN
  • Color: BLACK
  • Material: RUBBER BUTADIENE-STYRENE CLASS SBR
  • Outside/top Flange Diameter: 0.625 INCHES NOMINAL IN
  • Material Hardness Rating: 55.0 DUROMETER MINIMUM AND 65.0 DUROMETER MAXIMUM
  • Style Designator: DOUBLE FLANGE
Applications
  • Applications requiring Rubber Butadiene-Styrene Class Sbr construction
General Description

The Bumper, cataloged under National Stock Number 5340-01-140-0378, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Tennant Company. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-140-0378
Primary Part Number51787
Item NameBumper
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerTennant Company
StatusACTIVE
Groove Diameter0.281 INCHES NOMINAL IN
Bottom Flange Diameter0.438 INCHES NOMINAL IN
ColorBLACK
MaterialRUBBER BUTADIENE-STYRENE CLASS SBR
Outside/top Flange Diameter0.625 INCHES NOMINAL IN
Material Hardness Rating55.0 DUROMETER MINIMUM AND 65.0 DUROMETER MAXIMUM
Style DesignatorDOUBLE FLANGE
Top Flange Width0.344 INCHES NOMINAL IN
Bottom Flange Width0.172 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 3
9540-00-255-6371 INTERCHANGEABLE
Structural Section,special Shape
2940-00-432-962451787 INTERCHANGEABLE
Filter Element,fluid
Wix Corp
5330-01-033-324751787 INTERCHANGEABLE
Gasket
L3 Technologies, Inc. Div L3 Keo
Cross-Reference Index
Part NumberManufacturer
51787 Tennant Company (USA)
Related Parts
9540-00-255-6371INTERCHANGEABLE
STRUCTURAL SECTION,SPECIAL SHAPE
2940-00-432-9624INTERCHANGEABLE
FILTER ELEMENT,FLUID
51787
5330-01-033-3247INTERCHANGEABLE
GASKET
51787

Frequently Asked Questions

What is NSN 5340-01-140-0378?

NSN 5340-01-140-0378 is a Bumper, manufactured by Tennant Company, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-140-0378?

NSN 5340-01-140-0378 has 1 cross-referenced part number: 51787 (Tennant Company).

What NSN replaces 5340-01-140-0378?

There are 3 known substitutes for 5340-01-140-0378: 9540-00-255-6371, 2940-00-432-9624, 5330-01-033-3247. Verify interchangeability with system specifications before substitution.

What are the specifications of 51787?

Key specifications for 51787: Groove Diameter: 0.281 INCHES NOMINAL IN; Bottom Flange Diameter: 0.438 INCHES NOMINAL IN; Color: BLACK; Material: RUBBER BUTADIENE-STYRENE CLASS SBR. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com