PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35756-32Key,woodruff

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5315-00-045-2561 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-045-2561 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-045-2561. Primary manufacturer part number: MS35756-32.
Features
  • Key,woodruff — FSC 5315
  • Key Height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
  • Circle Diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Starting Edge Shape: ROUND
  • Key Size Designation: WOODRUFF 211
  • Thickness: 0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
  • Style Designator: ROUND BOTTOM
  • Material Document and Classification: QQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
Applications
  • Applications requiring Steel Comp 4130 or Steel Comp 8630 or Steel Comp 2330 Overall construction
General Description

The Key,woodruff, cataloged under National Stock Number 5315-00-045-2561, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5315-00-045-2561
Primary Part NumberMS35756-32
Item NameKey,woodruff
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Key Height0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Circle Diameter0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Starting Edge ShapeROUND
Key Size DesignationWOODRUFF 211
Thickness0.0625 INCHES MINIMUM AND 0.0635 INCHES MAXIMUM IN
Style DesignatorROUND BOTTOM
Material Document and ClassificationQQ-S-624 FED SPEC ALL MATERIAL RESPONSES OR 66 FED STD ALL MATERIAL RESPONSES OVERALL
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL COMP 4130 OR STEEL COMP 8630 OR STEEL COMP 2330 OVERALL
Starting Edge Radius0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3810-00-355-412854087 INTERCHANGEABLE
Spool,hydraulic Con
Terex American Crane Corp
5945-00-813-5138CR21-1 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
7045-01-351-5034 INTERCHANGEABLE
Disk,flexible
4520-01-504-343154087 INTERCHANGEABLE
Heating Element,electrical,nonim
American Permanent Ware Company Dba Apw/wyott Foodservice Eqp Co
Cross-Reference Index
Part NumberManufacturer
GK502A211 Northrop Grumman Systems Corporation (USA)
211 Society of Automotive Engineers Inc (USA)
452561 Army Weapons Command Attn Amswe-Ree-S (USA)
MS35756-32 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS35756-32 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
203 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
CR211 PRIMARY Roller Bearing Co of America, Inc Div Pic Design (USA)
10122526 Nimikkeistokeskus Ncb Finland (FIN)
CR211 Hqw Aerospace (uk) Limited (GBR)
54087 Ametek Airtechnology Group Limited (GBR)
211 Buffalo Machinery Co Inc (USA)
211 Ducommun Metals Co (USA)
211 Sae International Dba Sae International (USA)
Related Parts
3810-00-355-4128INTERCHANGEABLE
SPOOL,HYDRAULIC CON
54087
5945-00-813-5138INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
CR21-1
7045-01-351-5034INTERCHANGEABLE
DISK,FLEXIBLE
4520-01-504-3431INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
54087

Frequently Asked Questions

What is NSN 5315-00-045-2561?

NSN 5315-00-045-2561 is a Key,woodruff, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5315 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5315-00-045-2561?

NSN 5315-00-045-2561 has 13 cross-referenced part numbers: GK502A211 (Northrop Grumman Systems Corporation), 211 (Society of Automotive Engineers Inc), 452561 (Army Weapons Command Attn Amswe-Ree-S), MS35756-32 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), MS35756-32 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 8 more.

What NSN replaces 5315-00-045-2561?

There are 4 known substitutes for 5315-00-045-2561: 3810-00-355-4128, 5945-00-813-5138, 7045-01-351-5034 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS35756-32?

Key specifications for MS35756-32: Key Height: 0.167 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Circle Diameter: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Starting Edge Shape: ROUND; Key Size Designation: WOODRUFF 211. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5315-00-045-2561 still in active supply?

NSN 5315-00-045-2561 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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