PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFW84CLASSASTYLE3Washer,lock

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-010-8579 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-010-8579 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-010-8579. Primary manufacturer part number: FFW84CLASSASTYLE3.
Features
  • Washer,lock — FSC 5310
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL OVERALL
  • Material Document and Classification: FED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Nondefinitive Spec/std Data: 3 STYLE AND A CLASS
  • Outside Diameter: 0.601 INCHES MAXIMUM IN
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
  • Material Thickness: 0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
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 5310-00-010-8579, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 23 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-010-8579
Primary Part NumberFFW84CLASSASTYLE3
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL OVERALL
Material Document and ClassificationFED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD SINGLE MATERIAL RESPONSE OVERALL
Nondefinitive Spec/std Data3 STYLE AND A CLASS
Outside Diameter0.601 INCHES MAXIMUM IN
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Material Thickness0.097 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN
Hole Diameter0.319 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5310-00-012-0638 INTERCHANGEABLE
Washer,lock
5310-00-013-1084 INTERCHANGEABLE
Washer,lock
5310-00-013-1095830 INTERCHANGEABLE
Washer,lock
John Deer Consumer Products Inc
5310-00-013-109612X544 INTERCHANGEABLE
Washer,lock
Napco International Llc Dba Napco International Inc
5310-00-013-1097 INTERCHANGEABLE
Washer,lock
5310-00-013-1098 INTERCHANGEABLE
Washer,lock
5310-00-013-1116 INTERCHANGEABLE
Washer,lock
5310-00-013-1121 INTERCHANGEABLE
Washer,lock
5310-00-013-1139 INTERCHANGEABLE
Washer,lock
5310-00-013-1140 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
FFW84CLASSASTYLE3 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
DX253 Diamond Reo Truck Co (USA)
34846S2 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
204148 Renk America Llc Div Renk America (USA)
108579 General Motors Corp Delco Remy Div (USA)
108579 Navistar International Corporation Dba Navistar (USA)
108579 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
85414 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
25090142 Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS)
108579 Diamond Reo Truck Co (USA)
0910803 Allis-Chalmers Corp (USA)
202982 Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems (USA)
12025P11 M-R-S Mfg Co (USA)
12025P11 Taylor Machine Works Inc (USA)
108579 General Motors Corp (USA)
910803 Agco Corp Parts Opn (USA)
N7460AE Diamond Reo Truck Co (USA)
108579 Corbitt Co Inc (USA)
202982 Abm Equipment, Llc (USA)
08579 Borgwarner Pds (anderson), L.l.c. (USA)
Related Parts
5310-00-012-0638INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1084INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1095INTERCHANGEABLE
WASHER,LOCK
830
5310-00-013-1096INTERCHANGEABLE
WASHER,LOCK
12X544
5310-00-013-1097INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1098INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1116INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1121INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1139INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1140INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1141INTERCHANGEABLE
WASHER,LOCK
5310-00-013-1142INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-010-8579?

NSN 5310-00-010-8579 is a Washer,lock, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-010-8579?

NSN 5310-00-010-8579 has 23 cross-referenced part numbers: FFW84CLASSASTYLE3 (Federal Specifications Promulgated by General Services Administration Washington DC), DX253 (Diamond Reo Truck Co), 34846S2 (Ford Motor Co Ford Parts and Service Div Government Part Sales), 204148 (Renk America Llc Div Renk America), 108579 (General Motors Corp Delco Remy Div) and 18 more.

What NSN replaces 5310-00-010-8579?

There are 12 known substitutes for 5310-00-010-8579: 5310-00-012-0638, 5310-00-013-1084, 5310-00-013-1095 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFW84CLASSASTYLE3?

Key specifications for FFW84CLASSASTYLE3: Style Designator: SPLIT HELICAL-RIGHT HAND; Material: STEEL OVERALL; Material Document and Classification: FED STD 66,AISI C1060 THRU C1080 OR SAE 1060 THRU 1080 FED STD SINGLE MATERIAL RESPONSE OVERALL; Nondefinitive Spec/std Data: 3 STYLE AND A CLASS. 8 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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