PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

373-0191-010Washer,lock

Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems · NSN 5310-01-201-0306 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-201-0306 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-201-0306. Primary manufacturer part number: 373-0191-010.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment: SILVER AND CHROMATE OVERALL
  • Hole Diameter: 0.377 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
  • Precious Material: SILVER
  • Material Thickness: 0.022 INCHES NOMINAL IN
  • Outside Diameter: 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
  • Precious Material and Location: EXTERNAL SURFACES SILVER
  • Material: COPPER ALLOY OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-201-0306, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 9 verified specifications, 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-201-0306
Primary Part Number373-0191-010
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
StatusACTIVE
Surface TreatmentSILVER AND CHROMATE OVERALL
Hole Diameter0.377 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
Precious MaterialSILVER
Material Thickness0.022 INCHES NOMINAL IN
Outside Diameter0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
Precious Material and LocationEXTERNAL SURFACES SILVER
MaterialCOPPER ALLOY OVERALL
Style DesignatorFLAT INTERNAL TEETH
Surface Treatment Document and ClassificationQQ-S-365,TYPE 1,2,OR 3,GRADE A FED SPEC ALL TREATMENT RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5935-00-149-0525 INTERCHANGEABLE
Connector,plug,electrical
4730-00-196-0861 INTERCHANGEABLE
Bushing,pipe
5315-00-275-4758 INTERCHANGEABLE
Pin,straight,headless
5330-00-352-9280267098 INTERCHANGEABLE
Gasket
Linde Material Handling North America Corporation
5330-00-567-55846577 INTERCHANGEABLE
Gasket
King Engineering Corporation Dba King-Gage Systems
5950-00-936-4431718840-11REVA INTERCHANGEABLE
Saturable Reactor
Raytheon Company Div Rmd Strategic
3120-01-168-31136577 INTERCHANGEABLE
Bushing,sleeve
Eaton Aerospace, Llc Dba Jackson South
4810-01-387-54958210G094 INTERCHANGEABLE
Valve,solenoid
Automatic Switch Company Dba Asco
4810-01-424-97956577-G501 INTERCHANGEABLE
Valve,solenoid
Howell Laboratories Inc Dba Howell Laboratories Inc
Cross-Reference Index
Part NumberManufacturer
657-7 Lax Electronics, Inc. Dba Automatic Connector Div Automatic Connector (USA)
373-0191-010 PRIMARY Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
Related Parts
5935-00-149-0525INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4730-00-196-0861INTERCHANGEABLE
BUSHING,PIPE
5315-00-275-4758INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5330-00-352-9280INTERCHANGEABLE
GASKET
267098
5330-00-567-5584INTERCHANGEABLE
GASKET
6577
5950-00-936-4431INTERCHANGEABLE
SATURABLE REACTOR
718840-11REVA
3120-01-168-3113INTERCHANGEABLE
BUSHING,SLEEVE
6577
4810-01-387-5495INTERCHANGEABLE
VALVE,SOLENOID
8210G094
4810-01-424-9795INTERCHANGEABLE
VALVE,SOLENOID
6577-G501

Frequently Asked Questions

What is NSN 5310-01-201-0306?

NSN 5310-01-201-0306 is a Washer,lock, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-201-0306?

NSN 5310-01-201-0306 has 2 cross-referenced part numbers: 657-7 (Lax Electronics, Inc. Dba Automatic Connector Div Automatic Connector), 373-0191-010 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).

What NSN replaces 5310-01-201-0306?

There are 9 known substitutes for 5310-01-201-0306: 5935-00-149-0525, 4730-00-196-0861, 5315-00-275-4758 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 373-0191-010?

Key specifications for 373-0191-010: Surface Treatment: SILVER AND CHROMATE OVERALL; Hole Diameter: 0.377 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN; Precious Material: SILVER; Material Thickness: 0.022 INCHES NOMINAL IN. 9 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com