PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21RVNL172AX1-203-06Washer,lock

Curtiss-Wright Electro-Mechanical Corporation Div Epd · NSN 5310-00-155-4935 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-155-4935 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-155-4935. Primary manufacturer part number: 21RVNL172AX1-203-06.
Features
  • Washer,lock — FSC 5310
  • Outside Diameter: 0.812 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: SPLIT HELICAL-RIGHT HAND
  • Material Thickness: 0.094 INCHES NOMINAL IN
  • Hole Diameter: 0.562 INCHES NOMINAL IN
  • 3 verified cross-references
  • Primary manufacturer: Curtiss-Wright Electro-Mechanical Corporation Div Epd
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-155-4935, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-155-4935
Primary Part Number21RVNL172AX1-203-06
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corporation Div Epd
StatusACTIVE
Outside Diameter0.812 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorSPLIT HELICAL-RIGHT HAND
Material Thickness0.094 INCHES NOMINAL IN
Hole Diameter0.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5136-00-237-8149 INTERCHANGEABLE
Tap,thread Cutting
2540-00-351-0153A14115 INTERCHANGEABLE
Tarpaulin
Am General Llc
5330-00-796-440314115 INTERCHANGEABLE
Seal,plain
Parker Hannifin Corporation Dba Pneutronics Div Cylinder Division
5950-01-275-0713B4040028 INTERCHANGEABLE
Transformer,power
Department of the Army Hq United States Army Communications Research and Development Command
5331-01-302-988714-115 INTERCHANGEABLE
O-Ring
Natural Gas Solutions North America Llc Div Industrial Products Group
5930-01-581-713014115 INTERCHANGEABLE
Switch,pressure
Jacobs Mfg Co the
5306-01-625-994514115 INTERCHANGEABLE
Bolt,machine
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
21RVNL172AX1-203-06 Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging (USA)
14115 Demarkus Corp Refrigeration Engineering Corp (USA)
21RVNL172AX1-203-06 PRIMARY Curtiss-Wright Electro-Mechanical Corporation Div Epd (USA)
Related Parts
5136-00-237-8149INTERCHANGEABLE
TAP,THREAD CUTTING
2540-00-351-0153INTERCHANGEABLE
TARPAULIN
A14115
5330-00-796-4403INTERCHANGEABLE
SEAL,PLAIN
14115
5950-01-275-0713INTERCHANGEABLE
TRANSFORMER,POWER
B4040028
5331-01-302-9887INTERCHANGEABLE
O-RING
14-115
5930-01-581-7130INTERCHANGEABLE
SWITCH,PRESSURE
14115
5306-01-625-9945INTERCHANGEABLE
BOLT,MACHINE
14115

Frequently Asked Questions

What is NSN 5310-00-155-4935?

NSN 5310-00-155-4935 is a Washer,lock, 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 5310-00-155-4935?

NSN 5310-00-155-4935 has 3 cross-referenced part numbers: 21RVNL172AX1-203-06 (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss Wright Engineered Pump Division Use CAGE Code 0ubg9 for Cataloging), 14115 (Demarkus Corp Refrigeration Engineering Corp), 21RVNL172AX1-203-06 (Curtiss-Wright Electro-Mechanical Corporation Div Epd).

What NSN replaces 5310-00-155-4935?

There are 7 known substitutes for 5310-00-155-4935: 5136-00-237-8149, 2540-00-351-0153, 5330-00-796-4403 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21RVNL172AX1-203-06?

Key specifications for 21RVNL172AX1-203-06: Outside Diameter: 0.812 INCHES NOMINAL IN; Material: STEEL OVERALL; Style Designator: SPLIT HELICAL-RIGHT HAND; Material Thickness: 0.094 INCHES NOMINAL IN. 5 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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