PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

101389Washer,lock

Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052 · NSN 5310-01-216-7390 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-216-7390 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-216-7390. Primary manufacturer part number: 101389.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.125 INCHES MINIMUM IN
  • Heat Treatment: QUENCHED AND TEMPERED
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Surface Treatment: ZINC AND CHROMATE OR ZINC OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1064 or Steel Comp 1065 or Steel Comp 1566 or Steel Comp 1069 or Steel Comp 1070 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1078 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-216-7390, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-216-7390
Primary Part Number101389
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerMaysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052
StatusCANCELLED
Material Thickness0.125 INCHES MINIMUM IN
Heat TreatmentQUENCHED AND TEMPERED
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Surface TreatmentZINC AND CHROMATE OR ZINC OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL COMP 1060 OR STEEL COMP 1064 OR STEEL COMP 1065 OR STEEL COMP 1566 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Nondefinitive Spec/std DataA CLASS AND 2 STYLE
Surface Treatment Document and ClassificationASTM B633,TY 2,CL 3 ASSN STD 1ST TREATMENT RESPONSE OR ASTM A153 ASSN STD 2ND TREATMENT RESPONSE OVERALL
Hole Diameter0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
Outside Diameter0.873 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3120-00-883-0893101-0450 INTERCHANGEABLE
Bearing,sleeve
Cummins Power Generation Inc.
5999-00-947-1247 INTERCHANGEABLE
Shielding Gasket,electronic
5950-01-148-6053989115-1B INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon
5305-01-190-1655101389 INTERCHANGEABLE
Screw
Ohio Medical Corporation Dba Ohio Medical Corp Ltd U.k
Cross-Reference Index
Part NumberManufacturer
101389 Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052 (USA)
FF-W-84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51415-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
101389 Gleason Reel Corp (USA)
5310PL0793559 Jednolity Indeks Materialowy - Uniform Material Index (POL)
Related Parts
3120-00-883-0893INTERCHANGEABLE
BEARING,SLEEVE
101-0450
5999-00-947-1247INTERCHANGEABLE
SHIELDING GASKET,ELECTRONIC
5950-01-148-6053INTERCHANGEABLE
COIL,RADIO FREQUENCY
989115-1B
5305-01-190-1655INTERCHANGEABLE
SCREW
101389

Frequently Asked Questions

What is NSN 5310-01-216-7390?

NSN 5310-01-216-7390 is a Washer,lock, manufactured by Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-216-7390?

NSN 5310-01-216-7390 has 5 cross-referenced part numbers: 101389 (Maysteel Products Corp Po Box 1240 Menomonee Falls Wi 53052), FF-W-84 (Federal Specifications Promulgated by General Services Administration Washington DC), MS51415-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 101389 (Gleason Reel Corp), 5310PL0793559 (Jednolity Indeks Materialowy - Uniform Material Index).

What NSN replaces 5310-01-216-7390?

There are 4 known substitutes for 5310-01-216-7390: 3120-00-883-0893, 5999-00-947-1247, 5950-01-148-6053 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 101389?

Key specifications for 101389: Material Thickness: 0.125 INCHES MINIMUM IN; Heat Treatment: QUENCHED AND TEMPERED; End Item Identification: MRAP - COUGAR CAT1 A2; Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-216-7390 still in active supply?

NSN 5310-01-216-7390 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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