PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13251Washer,convex

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5310-00-166-1440 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-166-1440 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-166-1440. Primary manufacturer part number: 13251.
Features
  • Washer,convex — FSC 5310
  • Material Thickness: 0.203 INCHES NOMINAL IN
  • Outside Diameter: 1.250 INCHES NOMINAL IN
  • Hole Diameter: 0.469 INCHES NOMINAL IN
  • Material: STEEL COMP 6150 OVERALL
  • Style Designator: CONVEX
  • Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 6150 Overall construction
General Description

The Washer,convex, cataloged under National Stock Number 5310-00-166-1440, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-166-1440
Primary Part Number13251
Item NameWasher,convex
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusACTIVE
Material Thickness0.203 INCHES NOMINAL IN
Outside Diameter1.250 INCHES NOMINAL IN
Hole Diameter0.469 INCHES NOMINAL IN
MaterialSTEEL COMP 6150 OVERALL
Style DesignatorCONVEX
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6610-00-019-54251325-1 INTERCHANGEABLE
Jewel Bushing Assembly
Aerosonic Llc
4920-00-083-94221325-1 INTERCHANGEABLE
Pusher,bracket Assembly
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
5120-00-224-4127 INTERCHANGEABLE
Hammer,hand
5930-00-248-342113251 INTERCHANGEABLE
Switch,rotary
Yosemite Investment Inc Dba North American Capacitor Co
5360-00-297-4744206901PC3 INTERCHANGEABLE
Spring,helical,compression
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5935-00-402-72861325-1 INTERCHANGEABLE
Plug,tip
Fluke Electronics Corp
5950-00-763-1770SMC500470-12 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5841-01-032-9997 INTERCHANGEABLE
Rotary Joint
4810-01-287-4855517841 INTERCHANGEABLE
Valve,solenoid
Eaton Aerospace, Llc Dba Jackson South
6685-01-292-5191 INTERCHANGEABLE
Thermostat,flow Control
Cross-Reference Index
Part NumberManufacturer
13251 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
6610-00-019-5425INTERCHANGEABLE
JEWEL BUSHING ASSEMBLY
1325-1
4920-00-083-9422INTERCHANGEABLE
PUSHER,BRACKET ASSEMBLY
1325-1
5120-00-224-4127INTERCHANGEABLE
HAMMER,HAND
5930-00-248-3421INTERCHANGEABLE
SWITCH,ROTARY
13251
5360-00-297-4744INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
206901PC3
5935-00-402-7286INTERCHANGEABLE
PLUG,TIP
1325-1
5950-00-763-1770INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SMC500470-12
5841-01-032-9997INTERCHANGEABLE
ROTARY JOINT
4810-01-287-4855INTERCHANGEABLE
VALVE,SOLENOID
517841
6685-01-292-5191INTERCHANGEABLE
THERMOSTAT,FLOW CONTROL
6130-01-342-7708INTERCHANGEABLE
POWER SUPPLY
6630-01-537-7611INTERCHANGEABLE
ADAPTER,OXYGEN ANALYZER
13251

Frequently Asked Questions

What is NSN 5310-00-166-1440?

NSN 5310-00-166-1440 is a Washer,convex, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-166-1440?

NSN 5310-00-166-1440 has 1 cross-referenced part number: 13251 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5310-00-166-1440?

There are 12 known substitutes for 5310-00-166-1440: 6610-00-019-5425, 4920-00-083-9422, 5120-00-224-4127 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13251?

Key specifications for 13251: Material Thickness: 0.203 INCHES NOMINAL IN; Outside Diameter: 1.250 INCHES NOMINAL IN; Hole Diameter: 0.469 INCHES NOMINAL IN; Material: STEEL COMP 6150 OVERALL. 6 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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