PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

Z0930-78423Washer,lock

Prestolite Electric Inc · NSN 5310-01-120-6997 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-120-6997 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-120-6997. Primary manufacturer part number: Z0930-78423.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Surface Treatment Document and Classification: QQ-P-416,TYPE II CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 1060 OR STEEL COMP 1080 OVERALL
  • Surface Treatment: CADMIUM OVERALL
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Material Thickness: 0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
  • Outside Diameter: 0.873 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1060 or Steel Comp 1080 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-120-6997, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-01-120-6997
Primary Part NumberZ0930-78423
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPrestolite Electric Inc
StatusCANCELLED
Style DesignatorSPLIT HELICAL-RIGHT HAND
Surface Treatment Document and ClassificationQQ-P-416,TYPE II CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 1060 OR STEEL COMP 1080 OVERALL
Surface TreatmentCADMIUM OVERALL
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Material Thickness0.125 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Outside Diameter0.873 INCHES MAXIMUM IN
Hole Diameter0.509 INCHES MINIMUM AND 0.523 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5310-00-003-4094 INTERCHANGEABLE
Washer,lock
5365-01-609-15481162T37 INTERCHANGEABLE
Plug,machine Thread
Mcmaster-Carr Supply Co
Cross-Reference Index
Part NumberManufacturer
10505769 General Dynamics Land Systems Canadacorp (CAN)
Z09378423 Prestolite Electric Inc (USA)
78423 Prestolite Electric Inc (USA)
5310011206997 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
Z0930-78423 Prestolite Electric Inc (USA)
Z0930-78423 PRIMARY Prestolite Electric Inc (USA)
3ER835526 Oshkosh Corp (USA)
Related Parts
5310-00-003-4094INTERCHANGEABLE
WASHER,LOCK
5365-01-609-1548INTERCHANGEABLE
PLUG,MACHINE THREAD
1162T37

Frequently Asked Questions

What is NSN 5310-01-120-6997?

NSN 5310-01-120-6997 is a Washer,lock, manufactured by Prestolite Electric Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-01-120-6997?

NSN 5310-01-120-6997 has 7 cross-referenced part numbers: 10505769 (General Dynamics Land Systems Canadacorp), Z09378423 (Prestolite Electric Inc), 78423 (Prestolite Electric Inc), 5310011206997 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), Z0930-78423 (Prestolite Electric Inc) and 2 more.

What NSN replaces 5310-01-120-6997?

There are 2 known substitutes for 5310-01-120-6997: 5310-00-003-4094, 5365-01-609-1548. Verify interchangeability with system specifications before substitution.

What are the specifications of Z0930-78423?

Key specifications for Z0930-78423: Style Designator: SPLIT HELICAL-RIGHT HAND; Surface Treatment Document and Classification: QQ-P-416,TYPE II CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL COMP 1060 OR STEEL COMP 1080 OVERALL; Surface Treatment: CADMIUM OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-01-120-6997 still in active supply?

NSN 5310-01-120-6997 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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