PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21685T16Bumper

Mcmaster-Carr Supply Co · NSN 5340-01-732-4638 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-732-4638 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-732-4638. Primary manufacturer part number: 21685T16.
Features
  • Bumper — FSC 5340
  • Mounting Hole Diameter: 0.50 INCHES NOMINAL IN
  • Material: RUBBER
  • Material Document and Classification: ASTM D2000 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE
  • First Counterbore Diameter: 1.25 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Mcmaster-Carr Supply Co
Applications
  • Applications requiring Rubber construction
General Description

The Bumper, cataloged under National Stock Number 5340-01-732-4638, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN5340-01-732-4638
Primary Part Number21685T16
Item NameBumper
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerMcmaster-Carr Supply Co
StatusACTIVE
Mounting Hole Diameter0.50 INCHES NOMINAL IN
MaterialRUBBER
Material Document and ClassificationASTM D2000 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE
First Counterbore Diameter1.25 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 1
5340-01-562-0904 INTERCHANGEABLE
Bumper
Cross-Reference Index
Part NumberManufacturer
21685T16 PRIMARY Mcmaster-Carr Supply Co (USA)
12730657 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Related Parts
5340-01-562-0904INTERCHANGEABLE
BUMPER

Frequently Asked Questions

What is NSN 5340-01-732-4638?

NSN 5340-01-732-4638 is a Bumper, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-732-4638?

NSN 5340-01-732-4638 has 2 cross-referenced part numbers: 21685T16 (Mcmaster-Carr Supply Co), 12730657 (U S Army Tank Automotive Command Amsta-Im-Mm).

What NSN replaces 5340-01-732-4638?

There is 1 known substitute for 5340-01-732-4638: 5340-01-562-0904. Verify interchangeability with system specifications before substitution.

What are the specifications of 21685T16?

Key specifications for 21685T16: Mounting Hole Diameter: 0.50 INCHES NOMINAL IN; Material: RUBBER; Overall Height: 3.75 INCHES NOMINAL IN; Overall Length: 7.5 INCHES NOMINAL IN. 10 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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