PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

191775Washer,lock

Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney · NSN 5310-00-038-2390 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-038-2390 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-038-2390. Primary manufacturer part number: 191775.
Features
  • Washer,lock — FSC 5310
  • Surface Treatment: PASSIVATE OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material: STEEL CORROSION RESISTING OVERALL
  • Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
  • Material Thickness: 0.031 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
  • Outside Diameter: 0.280 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-038-2390, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-038-2390
Primary Part Number191775
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Dba Pratt & Whitney Div Pratt &whitney
StatusCANCELLED
Surface TreatmentPASSIVATE OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
MaterialSTEEL CORROSION RESISTING OVERALL
Hole Diameter0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN
Material Thickness0.031 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN
Outside Diameter0.280 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5330-00-572-44096409506B INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5310-00-933-8119MS35338-137 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
3120-01-040-774119177-5 INTERCHANGEABLE
Bearing,plain,self-Aligning
Rbc Specline Inc Dba Specline Inc
3020-01-407-0740191-775 INTERCHANGEABLE
Gear,spur
Cmc Electronics Inc
5310-01-669-4794 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
191775 PRIMARY Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
Related Parts
5330-00-572-4409INTERCHANGEABLE
GASKET
6409506B
5310-00-933-8119INTERCHANGEABLE
WASHER,LOCK
MS35338-137
3120-01-040-7741INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
19177-5
3020-01-407-0740INTERCHANGEABLE
GEAR,SPUR
191-775
5310-01-669-4794INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5310-00-038-2390?

NSN 5310-00-038-2390 is a Washer,lock, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-038-2390?

NSN 5310-00-038-2390 has 1 cross-referenced part number: 191775 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).

What NSN replaces 5310-00-038-2390?

There are 5 known substitutes for 5310-00-038-2390: 5330-00-572-4409, 5310-00-933-8119, 3120-01-040-7741 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 191775?

Key specifications for 191775: Surface Treatment: PASSIVATE OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Material: STEEL CORROSION RESISTING OVERALL; Hole Diameter: 0.168 INCHES MINIMUM AND 0.178 INCHES MAXIMUM IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-038-2390 still in active supply?

NSN 5310-00-038-2390 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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