PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X1012Washer,lock

Prestolite Electric Inc · NSN 5310-00-641-9283 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-641-9283 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-641-9283. Primary manufacturer part number: X1012.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.200 INCHES NOMINAL IN
  • Hole Diameter: 0.141 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
  • Material Thickness: 0.031 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • 2 verified cross-references
  • Primary manufacturer: Prestolite Electric Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-641-9283, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Prestolite Electric Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-641-9283
Primary Part NumberX1012
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusACTIVE
Outside Diameter0.200 INCHES NOMINAL IN
Hole Diameter0.141 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN
Material Thickness0.031 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5315-00-234-3962X10-12 INTERCHANGEABLE
Key,woodruff
Parker Hannifin Corporation Div Cylinder Division
5999-00-378-5277 INTERCHANGEABLE
Contact,electrical
5340-00-673-3772997X INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
Cross-Reference Index
Part NumberManufacturer
X1012 Prestolite Electric Inc (USA)
X1012 PRIMARY Prestolite Electric Inc (USA)
Related Parts
5315-00-234-3962INTERCHANGEABLE
KEY,WOODRUFF
X10-12
5999-00-378-5277INTERCHANGEABLE
CONTACT,ELECTRICAL
5340-00-673-3772INTERCHANGEABLE
KEY BLANK
997X

Frequently Asked Questions

What is NSN 5310-00-641-9283?

NSN 5310-00-641-9283 is a Washer,lock, manufactured by Prestolite Electric Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-641-9283?

NSN 5310-00-641-9283 has 2 cross-referenced part numbers: X1012 (Prestolite Electric Inc), X1012 (Prestolite Electric Inc).

What NSN replaces 5310-00-641-9283?

There are 3 known substitutes for 5310-00-641-9283: 5315-00-234-3962, 5999-00-378-5277, 5340-00-673-3772. Verify interchangeability with system specifications before substitution.

What are the specifications of X1012?

Key specifications for X1012: Outside Diameter: 0.200 INCHES NOMINAL IN; Hole Diameter: 0.141 INCHES MINIMUM AND 0.148 INCHES MAXIMUM IN; Material Thickness: 0.031 INCHES NOMINAL IN; Material: STEEL OVERALL. 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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