PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103931-1Stop,rotor

Hartwell Corporation · NSN 5342-01-328-5048 · FSC 5342 · Mount,resilient,weapon System
Verified by PartsTable
NSN 5342-01-328-5048 — this item is cataloged by the U.S. Government under National Stock Number 5342-01-328-5048. Primary manufacturer part number: 103931-1.
Features
  • Stop,rotor — FSC 5342
  • General Characteristics Item Description: ITEM KEEPS LATCH FROM INDICATING THAT IT IS LOCKED IN INSTANCES WHERE I-BOLT IS BROKEN; HOOK CATCHES I-BOLT IN LATCH
  • 2 verified cross-references
  • Primary manufacturer: Hartwell Corporation
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Stop,rotor, cataloged under National Stock Number 5342-01-328-5048, is classified within Federal Supply Class 5342 (Mount,resilient,weapon System) of the Hardware and Abrasives group. The primary manufacturer of record is Hartwell Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5342-01-328-5048
Primary Part Number103931-1
Item NameStop,rotor
FSC / FSG5342 / 53 — Mount,resilient,weapon System
ManufacturerHartwell Corporation
StatusACTIVE
General Characteristics Item DescriptionITEM KEEPS LATCH FROM INDICATING THAT IT IS LOCKED IN INSTANCES WHERE I-BOLT IS BROKEN; HOOK CATCHES I-BOLT IN LATCH
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
4940-00-193-88841039-311 INTERCHANGEABLE
Probe,filter Elemen
Crest Ultrasonics Corp
3020-00-517-43661039311 INTERCHANGEABLE
Gear,spur
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-01-337-6085 INTERCHANGEABLE
Connector Body,plug,electrical
Cross-Reference Index
Part NumberManufacturer
103931-1 PRIMARY Hartwell Corporation (USA)
9275837-01 Warner Robins Air Logistics Center (USA)
Related Parts
4940-00-193-8884INTERCHANGEABLE
PROBE,FILTER ELEMEN
1039-311
3020-00-517-4366INTERCHANGEABLE
GEAR,SPUR
1039311
5935-01-337-6085INTERCHANGEABLE
CONNECTOR BODY,PLUG,ELECTRICAL

Frequently Asked Questions

What is NSN 5342-01-328-5048?

NSN 5342-01-328-5048 is a Stop,rotor, manufactured by Hartwell Corporation, classified under FSC 5342 (Mount,resilient,weapon System). Status: active.

What are the part numbers for NSN 5342-01-328-5048?

NSN 5342-01-328-5048 has 2 cross-referenced part numbers: 103931-1 (Hartwell Corporation), 9275837-01 (Warner Robins Air Logistics Center).

What NSN replaces 5342-01-328-5048?

There are 3 known substitutes for 5342-01-328-5048: 4940-00-193-8884, 3020-00-517-4366, 5935-01-337-6085. Verify interchangeability with system specifications before substitution.

What are the specifications of 103931-1?

Key specifications for 103931-1: End Item Identification: FWD & AFT COWL DOOR; General Characteristics Item Description: ITEM KEEPS LATCH FROM INDICATING THAT IT IS LOCKED IN INSTANCES WHERE I-BOLT IS BROKEN; HOOK CATCHES I-BOLT IN LATCH. 2 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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