PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20059Washer,lock

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 5310-01-099-0487 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-099-0487 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-099-0487. Primary manufacturer part number: 20059.
Features
  • Washer,lock — FSC 5310
  • Material: STEEL CORROSION RESISTING OVERALL
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • Hole Diameter: 0.506 INCHES MINIMUM AND 0.518 INCHES MAXIMUM IN
  • Material Thickness: 0.064 INCHES NOMINAL IN
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 1 verified cross-reference
  • Primary manufacturer: Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-099-0487, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-099-0487
Primary Part Number20059
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
MaterialSTEEL CORROSION RESISTING OVERALL
Outside Diameter0.750 INCHES NOMINAL IN
Hole Diameter0.506 INCHES MINIMUM AND 0.518 INCHES MAXIMUM IN
Material Thickness0.064 INCHES NOMINAL IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
1650-00-083-429320059 INTERCHANGEABLE
Head,valve
Mid-America Aerotech, Llc
5330-00-211-9372 INTERCHANGEABLE
Gasket
6105-00-217-681122026 INTERCHANGEABLE
Armature,motor
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
5133-00-228-1322 INTERCHANGEABLE
Drill,twist
5120-00-966-643620059 INTERCHANGEABLE
Crimping Tool,terminal,hand
Te Connectivity Corporation Dba Tyco Electronics Corporation Div Deutsch Products
6505-01-039-8022NDC00071-3245-08 INTERCHANGEABLE
Sodium Chloride Solution for Res
Parke-Davis Div of Warner-Lambert Co
5905-01-109-67061700-1057 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Bei Sensors & Systems Company, Inc. Dba Bei Duncan
3020-01-188-378820059 INTERCHANGEABLE
Gear Sector,spur
Moog Inc. Dba Ampac-Isp Corp
2520-01-316-2340 INTERCHANGEABLE
Universal Joint,vehicular
4730-01-465-2507 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
20059 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
1650-00-083-4293INTERCHANGEABLE
HEAD,VALVE
20059
5330-00-211-9372INTERCHANGEABLE
GASKET
6105-00-217-6811INTERCHANGEABLE
ARMATURE,MOTOR
22026
5133-00-228-1322INTERCHANGEABLE
DRILL,TWIST
5120-00-966-6436INTERCHANGEABLE
CRIMPING TOOL,TERMINAL,HAND
20059
6505-01-039-8022INTERCHANGEABLE
SODIUM CHLORIDE SOLUTION FOR RES
NDC00071-3245-08
5905-01-109-6706INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
1700-1057
3020-01-188-3788INTERCHANGEABLE
GEAR SECTOR,SPUR
20059
2520-01-316-2340INTERCHANGEABLE
UNIVERSAL JOINT,VEHICULAR
4730-01-465-2507INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
2040-01-538-3474INTERCHANGEABLE
SPACER,WINDSHIELD
20059

Frequently Asked Questions

What is NSN 5310-01-099-0487?

NSN 5310-01-099-0487 is a Washer,lock, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-099-0487?

NSN 5310-01-099-0487 has 1 cross-referenced part number: 20059 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 5310-01-099-0487?

There are 11 known substitutes for 5310-01-099-0487: 1650-00-083-4293, 5330-00-211-9372, 6105-00-217-6811 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20059?

Key specifications for 20059: Material: STEEL CORROSION RESISTING OVERALL; Outside Diameter: 0.750 INCHES NOMINAL IN; Hole Diameter: 0.506 INCHES MINIMUM AND 0.518 INCHES MAXIMUM IN; Material Thickness: 0.064 INCHES NOMINAL IN. 5 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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