PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

52263-1Washer,key

Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix · NSN 5310-00-286-3179 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-286-3179 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-286-3179. Primary manufacturer part number: 52263-1.
Features
  • Washer,key — FSC 5310
  • Material: STEEL COMP 1020 OVERALL
  • Overall Distance Including Keys: 1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN
  • Hole Diameter: 0.993 INCHES MINIMUM AND 1.013 INCHES MAXIMUM IN
  • External Straight Key Length: 0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
  • Outside Diameter: 1.240 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN
  • Internal Straight Key Width: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
  • Internal Key Quantity: 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1020 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-286-3179, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5310-00-286-3179
Primary Part Number52263-1
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHoneywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
StatusACTIVE
MaterialSTEEL COMP 1020 OVERALL
Overall Distance Including Keys1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN
Hole Diameter0.993 INCHES MINIMUM AND 1.013 INCHES MAXIMUM IN
External Straight Key Length0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
Outside Diameter1.240 INCHES MINIMUM AND 1.248 INCHES MAXIMUM IN
Internal Straight Key Width0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
Internal Key Quantity1
Distance From Centerline to Top of Internal Key0.390 INCHES MINIMUM AND 0.410 INCHES MAXIMUM IN
External Key Quantity1
Material Thickness0.063 INCHES NOMINAL IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
External Straight Key Width0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5940-00-143-5284MS25036-115 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
52263-1 PRIMARY Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
52263-1 Honeywell International Inc. Div Aerospace - Torrance (USA)
52263-1 Alliedsignal Inc Dba Allied-Signal Aerospace Co (USA)
Related Parts
5940-00-143-5284INTERCHANGEABLE
TERMINAL,LUG
MS25036-115

Frequently Asked Questions

What is NSN 5310-00-286-3179?

NSN 5310-00-286-3179 is a Washer,key, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-286-3179?

NSN 5310-00-286-3179 has 3 cross-referenced part numbers: 52263-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 52263-1 (Honeywell International Inc. Div Aerospace - Torrance), 52263-1 (Alliedsignal Inc Dba Allied-Signal Aerospace Co).

What NSN replaces 5310-00-286-3179?

There is 1 known substitute for 5310-00-286-3179: 5940-00-143-5284. Verify interchangeability with system specifications before substitution.

What are the specifications of 52263-1?

Key specifications for 52263-1: Material: STEEL COMP 1020 OVERALL; Overall Distance Including Keys: 1.338 INCHES MINIMUM AND 1.342 INCHES MAXIMUM IN; Hole Diameter: 0.993 INCHES MINIMUM AND 1.013 INCHES MAXIMUM IN; External Straight Key Length: 0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN. 12 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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