PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2018-29Washer,key

Janco Corporation Dba Janco Corp Div Mason Controls · NSN 5310-01-053-3983 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-053-3983 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-053-3983. Primary manufacturer part number: 2018-29.
Features
  • Washer,key — FSC 5310
  • Surface Treatment Document and Classification: QQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Document and Classification: QQ-B-613,FORM SHEET,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: NICKEL OVERALL
  • Material: COPPER ALLOY OVERALL
  • Internal Prebent Key Width: 0.065 INCHES NOMINAL IN
  • Hardness Rating: 57.0 ROCKWELL B MINIMUM AND 77.0 ROCKWELL B MAXIMUM
  • External Prebent Key Length: 0.060 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-01-053-3983, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Janco Corporation Dba Janco Corp Div Mason Controls. Government technical data includes 10 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-053-3983
Primary Part Number2018-29
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerJanco Corporation Dba Janco Corp Div Mason Controls
StatusACTIVE
Surface Treatment Document and ClassificationQQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationQQ-B-613,FORM SHEET,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentNICKEL OVERALL
MaterialCOPPER ALLOY OVERALL
Internal Prebent Key Width0.065 INCHES NOMINAL IN
Hardness Rating57.0 ROCKWELL B MINIMUM AND 77.0 ROCKWELL B MAXIMUM
External Prebent Key Length0.060 INCHES NOMINAL IN
Outside Diameter0.625 INCHES NOMINAL IN
Material Thickness0.032 INCHES NOMINAL IN
Hole Diameter0.375 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2510-00-655-2764 INTERCHANGEABLE
Deflect
5330-01-064-335325002250 INTERCHANGEABLE
Seal
Parker-Hannifin Corporation Div Engineered Polymer Systems Division (eps)
Cross-Reference Index
Part NumberManufacturer
2018-29 PRIMARY Janco Corporation Dba Janco Corp Div Mason Controls (USA)
4M102-6 The Boeing Company Div Defense (USA)
Related Parts
2510-00-655-2764INTERCHANGEABLE
DEFLECT
5330-01-064-3353INTERCHANGEABLE
SEAL
25002250

Frequently Asked Questions

What is NSN 5310-01-053-3983?

NSN 5310-01-053-3983 is a Washer,key, manufactured by Janco Corporation Dba Janco Corp Div Mason Controls, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-053-3983?

NSN 5310-01-053-3983 has 2 cross-referenced part numbers: 2018-29 (Janco Corporation Dba Janco Corp Div Mason Controls), 4M102-6 (The Boeing Company Div Defense).

What NSN replaces 5310-01-053-3983?

There are 2 known substitutes for 5310-01-053-3983: 2510-00-655-2764, 5330-01-064-3353. Verify interchangeability with system specifications before substitution.

What are the specifications of 2018-29?

Key specifications for 2018-29: Surface Treatment Document and Classification: QQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Document and Classification: QQ-B-613,FORM SHEET,1/2 HARD FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Surface Treatment: NICKEL OVERALL; Material: COPPER ALLOY OVERALL. 10 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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