PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K91511Washer,key

The Timken Corporation · NSN 5310-01-105-4904 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-105-4904 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-105-4904. Primary manufacturer part number: K91511.
Features
  • Washer,key — FSC 5310
  • Material: STEEL OVERALL
  • Hole Diameter: 2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
  • Distance From Centerline to Top of Internal Key: 0.981 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
  • Internal Key Quantity: 1
  • Material Thickness: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
  • Style Designator: KEY
  • Outside Diameter: 3.235 INCHES MINIMUM AND 3.265 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-01-105-4904, 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 8 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.

Technical Specifications
ParameterValue
NSN5310-01-105-4904
Primary Part NumberK91511
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
MaterialSTEEL OVERALL
Hole Diameter2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN
Distance From Centerline to Top of Internal Key0.981 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN
Internal Key Quantity1
Material Thickness0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
Style DesignatorKEY
Outside Diameter3.235 INCHES MINIMUM AND 3.265 INCHES MAXIMUM IN
Internal Straight Key Width0.250 INCHES MINIMUM AND 0.290 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-01-054-1549K91511 INTERCHANGEABLE
Washer,key
The Timken Corporation
Cross-Reference Index
Part NumberManufacturer
K91511 PRIMARY The Timken Corporation (USA)
5428113 Naval Sea Systems Command (USA)
Related Parts
5310-01-054-1549INTERCHANGEABLE
WASHER,KEY
K91511

Frequently Asked Questions

What is NSN 5310-01-105-4904?

NSN 5310-01-105-4904 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 5310-01-105-4904?

NSN 5310-01-105-4904 has 2 cross-referenced part numbers: K91511 (The Timken Corporation), 5428113 (Naval Sea Systems Command).

What NSN replaces 5310-01-105-4904?

There is 1 known substitute for 5310-01-105-4904: 5310-01-054-1549. Verify interchangeability with system specifications before substitution.

What are the specifications of K91511?

Key specifications for K91511: Material: STEEL OVERALL; Hole Diameter: 2.182 INCHES MINIMUM AND 2.207 INCHES MAXIMUM IN; Distance From Centerline to Top of Internal Key: 0.981 INCHES MINIMUM AND 0.984 INCHES MAXIMUM IN; Internal Key Quantity: 1. 8 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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