PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

100842Washer,lock

Lucent Technologies Inc Dba Federal Marketing Group · NSN 5310-00-209-3975 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-209-3975 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-209-3975. Primary manufacturer part number: 100842.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment Document and Classification: QQ-P-416,TYPE CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material Thickness: 0.012 INCHES NOMINAL IN
  • Style Designator: FLAT INTERNAL TEETH
  • Surface Treatment: CADMIUM OVERALL
  • Hole Diameter: 0.141 INCHES NOMINAL IN
  • Outside Diameter: 0.219 INCHES NOMINAL IN
  • Material: STEEL OVERALL
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 5310-00-209-3975, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lucent Technologies Inc Dba Federal Marketing Group. Government technical data includes 7 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-209-3975
Primary Part Number100842
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerLucent Technologies Inc Dba Federal Marketing Group
StatusCANCELLED
Surface Treatment Document and ClassificationQQ-P-416,TYPE CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Material Thickness0.012 INCHES NOMINAL IN
Style DesignatorFLAT INTERNAL TEETH
Surface TreatmentCADMIUM OVERALL
Hole Diameter0.141 INCHES NOMINAL IN
Outside Diameter0.219 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
3020-00-070-4984100842 INTERCHANGEABLE
Gear Assembly
Astronautics Corporation of America
4210-00-262-13691FC160 INTERCHANGEABLE
Pad Hose,travel Lock
Oshkosh Defense Llc
5120-01-335-8716 INTERCHANGEABLE
Remover,electrical Contact
5895-01-618-8833100842 INTERCHANGEABLE
Rack,mount
Tim Price Inc. Dba Tim Price Inc
Cross-Reference Index
Part NumberManufacturer
100842 Lucent Technologies Inc Dba Federal Marketing Group (USA)
100842 Lucent Technologies Inc Corporate Headquarters (USA)
100842 American Telephone and Telegraph Co (USA)
Related Parts
3020-00-070-4984INTERCHANGEABLE
GEAR ASSEMBLY
100842
4210-00-262-1369INTERCHANGEABLE
PAD HOSE,TRAVEL LOCK
1FC160
5120-01-335-8716INTERCHANGEABLE
REMOVER,ELECTRICAL CONTACT
5895-01-618-8833INTERCHANGEABLE
RACK,MOUNT
100842

Frequently Asked Questions

What is NSN 5310-00-209-3975?

NSN 5310-00-209-3975 is a Washer,lock, manufactured by Lucent Technologies Inc Dba Federal Marketing Group, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-209-3975?

NSN 5310-00-209-3975 has 3 cross-referenced part numbers: 100842 (Lucent Technologies Inc Dba Federal Marketing Group), 100842 (Lucent Technologies Inc Corporate Headquarters), 100842 (American Telephone and Telegraph Co).

What NSN replaces 5310-00-209-3975?

There are 4 known substitutes for 5310-00-209-3975: 3020-00-070-4984, 4210-00-262-1369, 5120-01-335-8716 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 100842?

Key specifications for 100842: Surface Treatment Document and Classification: QQ-P-416,TYPE CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material Thickness: 0.012 INCHES NOMINAL IN; Style Designator: FLAT INTERNAL TEETH; Surface Treatment: CADMIUM OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-209-3975 still in active supply?

NSN 5310-00-209-3975 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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