PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K91511Washer,key

The Timken Corporation · NSN 5310-01-054-1549 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-054-1549 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-054-1549. Primary manufacturer part number: K91511.
Features
  • Washer,key — FSC 5310
  • Internal Straight Key Width: 0.290 INCHES NOMINAL IN
  • Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL
  • Style Designator: KEY
  • Material: STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
  • Distance From Centerline to Top of Internal Key: 0.880 INCHES NOMINAL IN
  • Hole Diameter: 2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
  • Internal Key Quantity: 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 or Steel Comp 1012 or Steel Comp 1015 or Steel Comp 1016 or Steel Comp 1017 or Steel Comp 1018 or Steel Comp 1019 or Steel Comp 1020 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-01-054-1549, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Timken Corporation. Government technical data includes 9 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-054-1549
Primary Part NumberK91511
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Internal Straight Key Width0.290 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
Style DesignatorKEY
MaterialSTEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
Distance From Centerline to Top of Internal Key0.880 INCHES NOMINAL IN
Hole Diameter2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
Internal Key Quantity1
Material Thickness0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
Outside Diameter3.235 INCHES MINIMUM AND 3.265 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-408-01298186861 INTERCHANGEABLE
Screw,machine
Us Army Aviation and Missile Command
5310-01-105-4904K91511 INTERCHANGEABLE
Washer,key
The Timken Corporation
2930-01-238-398485885 INTERCHANGEABLE
Cap,filler Opening
Young Touchstone Company Div Young Touchstone
6515-01-568-0959 INTERCHANGEABLE
Tube,tracheal
Cross-Reference Index
Part NumberManufacturer
K91511 PRIMARY The Timken Corporation (USA)
85885 Hyster (europe) Ltd (GBR)
Related Parts
5305-00-408-0129INTERCHANGEABLE
SCREW,MACHINE
8186861
5310-01-105-4904INTERCHANGEABLE
WASHER,KEY
K91511
2930-01-238-3984INTERCHANGEABLE
CAP,FILLER OPENING
85885
6515-01-568-0959INTERCHANGEABLE
TUBE,TRACHEAL

Frequently Asked Questions

What is NSN 5310-01-054-1549?

NSN 5310-01-054-1549 is a Washer,key, manufactured by The Timken Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-054-1549?

NSN 5310-01-054-1549 has 2 cross-referenced part numbers: K91511 (The Timken Corporation), 85885 (Hyster (europe) Ltd).

What NSN replaces 5310-01-054-1549?

There are 4 known substitutes for 5310-01-054-1549: 5305-00-408-0129, 5310-01-105-4904, 2930-01-238-3984 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of K91511?

Key specifications for K91511: Internal Straight Key Width: 0.290 INCHES NOMINAL IN; Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES OVERALL; Style Designator: KEY; Material: STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL. 9 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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