PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21261R304Key,woodruff

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5315-00-205-7182 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-205-7182 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-205-7182. Primary manufacturer part number: MS21261R304.
Features
  • Key,woodruff — FSC 5315
  • Key Height: 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
  • Key Size Designation: WOODRUFF 2
  • Starting Edge Radius: 0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
  • Hardness Rating: 45.0 ROCKWELL C MAXIMUM OVERALL
  • Thickness: 0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
  • Style Designator: ROUND BOTTOM
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
Applications
  • Applications requiring Steel Comp 4130 or Steel Comp 8630 Overall construction
General Description

The Key,woodruff, cataloged under National Stock Number 5315-00-205-7182, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 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: Cancelled.

Technical Specifications
ParameterValue
NSN5315-00-205-7182
Primary Part NumberMS21261R304
Item NameKey,woodruff
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Key Height0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN
Key Size DesignationWOODRUFF 2
Starting Edge Radius0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN
Hardness Rating45.0 ROCKWELL C MAXIMUM OVERALL
Thickness0.093 INCHES MINIMUM AND 0.094 INCHES MAXIMUM IN
Style DesignatorROUND BOTTOM
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Starting Edge ShapeROUND
MaterialSTEEL COMP 4130 OR STEEL COMP 8630 OVERALL
Circle Diameter0.490 INCHES MINIMUM AND 0.500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5315-00-616-5515103904 INTERCHANGEABLE
Key,woodruff
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
MS21261R304 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AN280-304 Aeronautical Standards Group Dept of Navy and Air Force (USA)
Related Parts
5315-00-616-5515INTERCHANGEABLE
KEY,WOODRUFF
103904

Frequently Asked Questions

What is NSN 5315-00-205-7182?

NSN 5315-00-205-7182 is a Key,woodruff, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5315 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5315-00-205-7182?

NSN 5315-00-205-7182 has 2 cross-referenced part numbers: MS21261R304 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AN280-304 (Aeronautical Standards Group Dept of Navy and Air Force).

What NSN replaces 5315-00-205-7182?

There is 1 known substitute for 5315-00-205-7182: 5315-00-616-5515. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21261R304?

Key specifications for MS21261R304: Key Height: 0.198 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Key Size Designation: WOODRUFF 2; Starting Edge Radius: 0.008 INCHES MINIMUM AND 0.012 INCHES MAXIMUM IN; Hardness Rating: 45.0 ROCKWELL C MAXIMUM OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5315-00-205-7182 still in active supply?

NSN 5315-00-205-7182 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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