PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303791Washer,key

Sabreliner Corp · NSN 5310-00-043-0808 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-043-0808 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-043-0808. Primary manufacturer part number: 303791.
Features
  • Washer,key — FSC 5310
  • External Prebent Key Width: 0.150 INCHES NOMINAL IN
  • External Key Quantity: 1
  • Outside Diameter: 0.530 INCHES NOMINAL IN
  • Angle Between External Keys: 120.0 DEGREES NOMINAL
  • Material: STEEL COMP 1010 OVERALL
  • Style Designator: KEY
  • Surface Treatment: CADMIUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-043-0808, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sabreliner Corp. Government technical data includes 17 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-043-0808
Primary Part Number303791
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSabreliner Corp
StatusACTIVE
External Prebent Key Width0.150 INCHES NOMINAL IN
External Key Quantity1
Outside Diameter0.530 INCHES NOMINAL IN
Angle Between External Keys120.0 DEGREES NOMINAL
MaterialSTEEL COMP 1010 OVERALL
Style DesignatorKEY
Surface TreatmentCADMIUM OVERALL
Surface Treatment Document and ClassificationAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Heat TreatmentAS FABRICATED
Overall Distance Including Keys0.980 INCHES NOMINAL IN
External Tapered Key Width0.420 INCHES NOMINAL IN
Material Thickness0.035 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
Hole Diameter0.323 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN
External Prebent Key Length0.200 INCHES NOMINAL IN
External Prebent Key Angle15.0 DEGREES NOMINAL
Split Key Length0.100 INCHES NOMINAL IN
Distance From Centerline to Inside of Prebent Key0.390 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5935-00-027-67598198758 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Aviation and Missile Command
6515-01-581-4311303791 INTERCHANGEABLE
Tube,binocular,surgical Microsco
Carl Zeiss Meditec Inc Div Meditec
Cross-Reference Index
Part NumberManufacturer
303791 Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines (USA)
303791 PRIMARY Sabreliner Corp (USA)
Related Parts
5935-00-027-6759INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
8198758
6515-01-581-4311INTERCHANGEABLE
TUBE,BINOCULAR,SURGICAL MICROSCO
303791

Frequently Asked Questions

What is NSN 5310-00-043-0808?

NSN 5310-00-043-0808 is a Washer,key, manufactured by Sabreliner Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-043-0808?

NSN 5310-00-043-0808 has 2 cross-referenced part numbers: 303791 (Teledyne Brown Engineering, Inc. Dba Teledyne Turbine Engines Div Teledyne Turbine Engines), 303791 (Sabreliner Corp).

What NSN replaces 5310-00-043-0808?

There are 2 known substitutes for 5310-00-043-0808: 5935-00-027-6759, 6515-01-581-4311. Verify interchangeability with system specifications before substitution.

What are the specifications of 303791?

Key specifications for 303791: External Prebent Key Width: 0.150 INCHES NOMINAL IN; External Key Quantity: 1; Outside Diameter: 0.530 INCHES NOMINAL IN; Angle Between External Keys: 120.0 DEGREES NOMINAL. 17 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