PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1500-6Washer,key

Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions · NSN 5310-00-079-1574 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-079-1574 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-079-1574. Primary manufacturer part number: 1500-6.
Features
  • Washer,key — FSC 5310
  • Outside Diameter: 1.750 INCHES NOMINAL IN
  • Material: STEEL COMP 1020 OVERALL
  • Hole Diameter: 0.906 INCHES NOMINAL IN
  • Style Designator: KEY
  • Material Thickness: 0.110 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
  • Internal Key Quantity: 1
  • Internal Straight Key Width: 0.187 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1020 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-079-1574, 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 Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-079-1574
Primary Part Number1500-6
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
StatusCANCELLED
Outside Diameter1.750 INCHES NOMINAL IN
MaterialSTEEL COMP 1020 OVERALL
Hole Diameter0.906 INCHES NOMINAL IN
Style DesignatorKEY
Material Thickness0.110 INCHES MINIMUM AND 0.155 INCHES MAXIMUM IN
Internal Key Quantity1
Internal Straight Key Width0.187 INCHES NOMINAL IN
Distance From Centerline to Top of Internal Key0.328 INCHES NOMINAL IN
Material Document and ClassificationQQ-S-698 COND CRCQ FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5120-00-152-2299 INTERCHANGEABLE
Blade,nutdriver
2825-00-175-88749914 INTERCHANGEABLE
Seat
Northrop Grumman Systems Corporation Div Marine Systems
5930-00-240-3397 INTERCHANGEABLE
Switch,knife
5950-00-421-29881203-94 INTERCHANGEABLE
Transformer,power
Bae Systems Information and Electronic Systems Integration Inc.
5925-00-660-3817ET4026 INTERCHANGEABLE
Circuit Breaker
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
1660-00-805-92341605569-1 INTERCHANGEABLE
Stem,valve
Mission Systems Davenport Inc.
5940-00-926-819312802C3 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
5330-00-972-028947023 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
4820-01-043-0935F-47023 INTERCHANGEABLE
Gland Follower
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
6680-01-201-132247023 INTERCHANGEABLE
Transmitter,liquid Quantity
Setra Systems, Inc. Dba Gems Sensors
Cross-Reference Index
Part NumberManufacturer
D704-11 Rivinius Inc Littleford Machinery Div (USA)
1500-6 Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
1500-6 Siemens Energy, Inc. Dba Dresser-Rand (USA)
1500-6 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
1500-6 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
4702-3 Pdi Ground Support Systems, Inc. (USA)
9-914 Pdi Ground Support Systems, Inc. (USA)
4WKW1614 Jaeger Machine Co (USA)
Related Parts
5120-00-152-2299INTERCHANGEABLE
BLADE,NUTDRIVER
2825-00-175-8874INTERCHANGEABLE
SEAT
9914
5930-00-240-3397INTERCHANGEABLE
SWITCH,KNIFE
5950-00-421-2988INTERCHANGEABLE
TRANSFORMER,POWER
1203-94
5925-00-660-3817INTERCHANGEABLE
CIRCUIT BREAKER
ET4026
1660-00-805-9234INTERCHANGEABLE
STEM,VALVE
1605569-1
5940-00-926-8193INTERCHANGEABLE
TERMINAL,STUD
12802C3
5330-00-972-0289INTERCHANGEABLE
SEAL,PLAIN ENCASED
47023
4820-01-043-0935INTERCHANGEABLE
GLAND FOLLOWER
F-47023
6680-01-201-1322INTERCHANGEABLE
TRANSMITTER,LIQUID QUANTITY
47023
5120-01-602-8327INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT

Frequently Asked Questions

What is NSN 5310-00-079-1574?

NSN 5310-00-079-1574 is a Washer,key, manufactured by Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-079-1574?

NSN 5310-00-079-1574 has 8 cross-referenced part numbers: D704-11 (Rivinius Inc Littleford Machinery Div), 1500-6 (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 1500-6 (Siemens Energy, Inc. Dba Dresser-Rand), 1500-6 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 1500-6 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions) and 3 more.

What NSN replaces 5310-00-079-1574?

There are 11 known substitutes for 5310-00-079-1574: 5120-00-152-2299, 2825-00-175-8874, 5930-00-240-3397 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1500-6?

Key specifications for 1500-6: Outside Diameter: 1.750 INCHES NOMINAL IN; Material: STEEL COMP 1020 OVERALL; Hole Diameter: 0.906 INCHES NOMINAL IN; Style Designator: KEY. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-079-1574 still in active supply?

NSN 5310-00-079-1574 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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