PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A44488Washer,convex

Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. · NSN 5310-00-448-6789 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-448-6789 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-448-6789. Primary manufacturer part number: A44488.
Features
  • Washer,convex — FSC 5310
  • Material Thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
  • Style Designator: CONVEX
  • Hole Diameter: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
  • Surface Treatment: CADMIUM OVERALL
  • Outside Diameter: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • 2 verified cross-references
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,convex, cataloged under National Stock Number 5310-00-448-6789, 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 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-448-6789
Primary Part NumberA44488
Item NameWasher,convex
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerPratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
StatusCANCELLED
Material Thickness0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN
Style DesignatorCONVEX
Hole Diameter0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN
Surface TreatmentCADMIUM OVERALL
Outside Diameter0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5360-00-181-387644488 INTERCHANGEABLE
Spring,helical,compression
Cae Usa Inc.
4730-00-231-5596AS4854-08 INTERCHANGEABLE
Elbow,pipe
Sae International Dba Sae International
4820-00-334-386744488 INTERCHANGEABLE
Seat,valve
Spirax Sarco Inc Dba Spirax Sarco
5330-01-225-0758 INTERCHANGEABLE
Gland,bottom
3020-01-231-7721 INTERCHANGEABLE
Pulley,mechanism
5330-01-278-186344488 INTERCHANGEABLE
Retainer,packing
Griswold Industries Dba Cla-Val Co
7520-01-461-266060106 INTERCHANGEABLE
Pen,ball-Point
George W. Allen Co., Inc.
Cross-Reference Index
Part NumberManufacturer
A44488 PRIMARY Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
44488 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
Related Parts
5360-00-181-3876INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
44488
4730-00-231-5596INTERCHANGEABLE
ELBOW,PIPE
AS4854-08
4820-00-334-3867INTERCHANGEABLE
SEAT,VALVE
44488
5330-01-225-0758INTERCHANGEABLE
GLAND,BOTTOM
3020-01-231-7721INTERCHANGEABLE
PULLEY,MECHANISM
5330-01-278-1863INTERCHANGEABLE
RETAINER,PACKING
44488
7520-01-461-2660INTERCHANGEABLE
PEN,BALL-POINT
60106

Frequently Asked Questions

What is NSN 5310-00-448-6789?

NSN 5310-00-448-6789 is a Washer,convex, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-448-6789?

NSN 5310-00-448-6789 has 2 cross-referenced part numbers: A44488 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), 44488 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.).

What NSN replaces 5310-00-448-6789?

There are 7 known substitutes for 5310-00-448-6789: 5360-00-181-3876, 4730-00-231-5596, 4820-00-334-3867 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A44488?

Key specifications for A44488: Material Thickness: 0.084 INCHES MINIMUM AND 0.104 INCHES MAXIMUM IN; Style Designator: CONVEX; Hole Diameter: 0.334 INCHES MINIMUM AND 0.354 INCHES MAXIMUM IN; Surface Treatment: CADMIUM OVERALL. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-448-6789 still in active supply?

NSN 5310-00-448-6789 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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