PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

17820Washer,key

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 5310-00-637-3079 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-637-3079 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-637-3079. Primary manufacturer part number: 17820.
Features
  • Washer,key — FSC 5310
  • Angle Between Second and Third Key: 40.0 DEGREES NOMINAL
  • Angle Between Fifth and Sixth Key: 40.0 DEGREES NOMINAL
  • Angle Between Third and Fourth Key: 40.0 DEGREES NOMINAL
  • External Prebent Key Width: 0.158 INCHES NOMINAL IN
  • Internal Prebent Key Length: 0.235 INCHES NOMINAL IN
  • Material Thickness: 0.031 INCHES NOMINAL IN
  • Hole Diameter: 0.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Nickel Alloy Uns N10001 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-637-3079, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corporation Div Epd. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, 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
NSN5310-00-637-3079
Primary Part Number17820
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Angle Between Second and Third Key40.0 DEGREES NOMINAL
Angle Between Fifth and Sixth Key40.0 DEGREES NOMINAL
Angle Between Third and Fourth Key40.0 DEGREES NOMINAL
External Prebent Key Width0.158 INCHES NOMINAL IN
Internal Prebent Key Length0.235 INCHES NOMINAL IN
Material Thickness0.031 INCHES NOMINAL IN
Hole Diameter0.750 INCHES NOMINAL IN
External Key Quantity7
Outside Diameter1.093 INCHES NOMINAL IN
Angle Between First and Second Key40.0 DEGREES NOMINAL
Angle Between Fourth and Fifth Key40.0 DEGREES NOMINAL
Overall Distance Including Keys1.224 INCHES NOMINAL IN
Material Document and ClassificationQQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialNICKEL ALLOY UNS N10001 OVERALL
Internal Prebent Key Width0.174 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-100-7767 INTERCHANGEABLE
Seal Kit
5133-00-189-9276 INTERCHANGEABLE
Drill,twist
5330-00-453-656411407 INTERCHANGEABLE
Seal,plain Encased
Marco Seattle Inc
6625-00-542-1373SMB183114 INTERCHANGEABLE
Tip,test Prod
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2920-00-640-74473248119 INTERCHANGEABLE
Starter,engine,electrical
Hatch & Kirk, Inc.
5826-00-716-3778 INTERCHANGEABLE
Rf Unit Assembly
4720-00-837-76403203 INTERCHANGEABLE
Hose Assembly,metallic
Alter Harry Co the Div of T E C
5120-00-900-611017016 INTERCHANGEABLE
Hammer,hand
Nupla Corporation
2805-00-962-8842993P INTERCHANGEABLE
Piston,internal Combustion Engin
Federal-Mogul Corp Government Sales Dept
4140-01-044-7993 INTERCHANGEABLE
Impeller,fan,axial
Cross-Reference Index
Part NumberManufacturer
900P Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
SL4143 PC6 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
11407 Rps-Fl, Inc. Dba Rps Inc (USA)
17820 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
17820 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
Related Parts
5330-00-100-7767INTERCHANGEABLE
SEAL KIT
5133-00-189-9276INTERCHANGEABLE
DRILL,TWIST
5330-00-453-6564INTERCHANGEABLE
SEAL,PLAIN ENCASED
11407
6625-00-542-1373INTERCHANGEABLE
TIP,TEST PROD
SMB183114
2920-00-640-7447INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
3248119
5826-00-716-3778INTERCHANGEABLE
RF UNIT ASSEMBLY
4720-00-837-7640INTERCHANGEABLE
HOSE ASSEMBLY,METALLIC
3203
5120-00-900-6110INTERCHANGEABLE
HAMMER,HAND
17016
2805-00-962-8842INTERCHANGEABLE
PISTON,INTERNAL COMBUSTION ENGIN
993P
4140-01-044-7993INTERCHANGEABLE
IMPELLER,FAN,AXIAL
6680-01-050-0532INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
613NLG
2520-01-173-4207INTERCHANGEABLE
ADAPTER,PINION,FINAL DRIVE ASSEM
11407

Frequently Asked Questions

What is NSN 5310-00-637-3079?

NSN 5310-00-637-3079 is a Washer,key, manufactured by Curtiss-Wright Electro-Mechanical Corporation Div Epd, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-637-3079?

NSN 5310-00-637-3079 has 5 cross-referenced part numbers: 900P (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), SL4143 PC6 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 11407 (Rps-Fl, Inc. Dba Rps Inc), 17820 (Curtiss-Wright Electro-Mechanical Corporation Div Epd), 17820 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging).

What NSN replaces 5310-00-637-3079?

There are 12 known substitutes for 5310-00-637-3079: 5330-00-100-7767, 5133-00-189-9276, 5330-00-453-6564 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 17820?

Key specifications for 17820: Angle Between Second and Third Key: 40.0 DEGREES NOMINAL; Angle Between Fifth and Sixth Key: 40.0 DEGREES NOMINAL; Angle Between Third and Fourth Key: 40.0 DEGREES NOMINAL; External Prebent Key Width: 0.158 INCHES NOMINAL IN. 16 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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