PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S-873Stone,buffing

Technical Rubber Company, Inc. · NSN 2640-01-531-3981 · FSC 2640 · No Item Name Available
Verified by PartsTable
NSN 2640-01-531-3981 — this item is cataloged by the U.S. Government under National Stock Number 2640-01-531-3981. Primary manufacturer part number: S-873.
Features
  • Stone,buffing — FSC 2640
  • 1 verified cross-reference
  • Primary manufacturer: Technical Rubber Company, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Stone,buffing, cataloged under National Stock Number 2640-01-531-3981, is classified within Federal Supply Class 2640 (No Item Name Available) of the Tires and Tubes group. The primary manufacturer of record is Technical Rubber Company, Inc.. 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.

Technical Specifications
ParameterValue
NSN2640-01-531-3981
Primary Part NumberS-873
Item NameStone,buffing
FSC / FSG2640 / 26 — No Item Name Available
ManufacturerTechnical Rubber Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
6685-00-063-97221-4 1112BE INTERCHANGEABLE
Dampener,fluid Pressure
Ashcroft Inc Dba Heise
Cross-Reference Index
Part NumberManufacturer
S-873 PRIMARY Technical Rubber Company, Inc. (USA)
Related Parts
6685-00-063-9722INTERCHANGEABLE
DAMPENER,FLUID PRESSURE
1-4 1112BE

Frequently Asked Questions

What is NSN 2640-01-531-3981?

NSN 2640-01-531-3981 is a Stone,buffing, manufactured by Technical Rubber Company, Inc., classified under FSC 2640 (No Item Name Available). Status: active.

What are the part numbers for NSN 2640-01-531-3981?

NSN 2640-01-531-3981 has 1 cross-referenced part number: S-873 (Technical Rubber Company, Inc.).

What NSN replaces 2640-01-531-3981?

There is 1 known substitute for 2640-01-531-3981: 6685-00-063-9722. Verify interchangeability with system specifications before substitution.

What are the specifications of S-873?

Key specifications for S-873: Special Features: MUSHROOM SHAPED; 40 MM DIA; MOUNTED ON A 6 MM SHAFT; 23,500 MAXIMUM RPMS MM. 1 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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