PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FF-W-100Washer,lock

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 5310-00-058-3135 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-058-3135 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-058-3135. Primary manufacturer part number: FF-W-100.
Features
  • Washer,lock — FSC 5310
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Hole Diameter: 0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
  • Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
  • Material Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
  • Outside Diameter: 0.599 INCHES NOMINAL IN
  • Countersink Angle: 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
  • Surface Treatment: PASSIVATE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 410 Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-058-3135, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-058-3135
Primary Part NumberFF-W-100
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Hole Diameter0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
Hardness Rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
Material Thickness0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN
Outside Diameter0.599 INCHES NOMINAL IN
Countersink Angle80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM
Surface TreatmentPASSIVATE OVERALL
MaterialSTEEL COMP 410 OVERALL
Style DesignatorCOUNTERSINK EXTERNAL TEETH
Surface Treatment Document and ClassificationQQ-P-35,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OR QQ-P-35,TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5310-00-011-4614114614 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-011-4617114617 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-011-4618 INTERCHANGEABLE
Washer,lock
5310-00-013-4512134512 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-013-8589 INTERCHANGEABLE
Washer,lock
5310-00-013-8593 INTERCHANGEABLE
Washer,lock
5310-00-013-8595138595 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-013-8604138604 INTERCHANGEABLE
Washer,lock
Chrysler Realty Company Llc Dba Daimler Chrysler
5310-00-194-9211 INTERCHANGEABLE
Washer,lock
5310-00-582-8716 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
FF-W-100 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MILW6986TYPEC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS35336-35 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-011-4614INTERCHANGEABLE
WASHER,LOCK
114614
5310-00-011-4617INTERCHANGEABLE
WASHER,LOCK
114617
5310-00-011-4618INTERCHANGEABLE
WASHER,LOCK
5310-00-013-4512INTERCHANGEABLE
WASHER,LOCK
134512
5310-00-013-8589INTERCHANGEABLE
WASHER,LOCK
5310-00-013-8593INTERCHANGEABLE
WASHER,LOCK
5310-00-013-8595INTERCHANGEABLE
WASHER,LOCK
138595
5310-00-013-8604INTERCHANGEABLE
WASHER,LOCK
138604
5310-00-194-9211INTERCHANGEABLE
WASHER,LOCK
5310-00-582-8716INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-058-3135?

NSN 5310-00-058-3135 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 5310-00-058-3135?

NSN 5310-00-058-3135 has 3 cross-referenced part numbers: FF-W-100 (Federal Specifications Promulgated by General Services Administration Washington DC), MILW6986TYPEC (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS35336-35 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5310-00-058-3135?

There are 10 known substitutes for 5310-00-058-3135: 5310-00-011-4614, 5310-00-011-4617, 5310-00-011-4618 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FF-W-100?

Key specifications for FF-W-100: Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Hole Diameter: 0.318 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN; Hardness Rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM; Material Thickness: 0.023 INCHES MINIMUM AND 0.028 INCHES MAXIMUM IN. 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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