PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7612520Washer,lock

Us Army Aviation and Missile Command · NSN 5310-00-262-0359 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-262-0359 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-262-0359. Primary manufacturer part number: 7612520.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.022 INCHES NOMINAL IN
  • Style Designator: FLAT INTERNAL TEETH
  • Material: COPPER ALLOY OVERALL
  • Outside Diameter: 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
  • Hole Diameter: 0.377 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
  • 2 verified cross-references
  • Primary manufacturer: Us Army Aviation and Missile Command
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-262-0359, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-262-0359
Primary Part Number7612520
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerUs Army Aviation and Missile Command
StatusCANCELLED
Material Thickness0.022 INCHES NOMINAL IN
Style DesignatorFLAT INTERNAL TEETH
MaterialCOPPER ALLOY OVERALL
Outside Diameter0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
Hole Diameter0.377 INCHES MINIMUM AND 0.391 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4940-00-006-09658-540 INTERCHANGEABLE
Maintenance Platform
C&h Distributors, Llc
5365-00-133-36628540 INTERCHANGEABLE
Spacer,sleeve
Dialight Corporation
5950-00-229-9797 INTERCHANGEABLE
Transformer,radio Frequency
5310-00-264-1151200074PC5 INTERCHANGEABLE
Washer,lock
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
6680-00-592-55928540-00 INTERCHANGEABLE
Indicator,oxygen Flow
Avox Systems Inc Dba Avox Systems Inc
4820-00-617-650681-540 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Matheson Co Div of G D Searle Medical Products
3030-01-047-02968540 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
4820-01-185-2291E8540D51M INTERCHANGEABLE
Valve,safety Relief
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
4820-01-192-4346E8540AF51M INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
4820-01-230-11988540 PIECE 4 INTERCHANGEABLE
Stem,fluid Valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
7612520 PRIMARY Us Army Aviation and Missile Command (USA)
8540 Cessna Aircraft Co Arc Avionics Div (USA)
Related Parts
4940-00-006-0965INTERCHANGEABLE
MAINTENANCE PLATFORM
8-540
5365-00-133-3662INTERCHANGEABLE
SPACER,SLEEVE
8540
5950-00-229-9797INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5310-00-264-1151INTERCHANGEABLE
WASHER,LOCK
200074PC5
6680-00-592-5592INTERCHANGEABLE
INDICATOR,OXYGEN FLOW
8540-00
4820-00-617-6506INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
81-540
3030-01-047-0296INTERCHANGEABLE
BELT,V
8540
4820-01-185-2291INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8540D51M
4820-01-192-4346INTERCHANGEABLE
VALVE,SAFETY RELIEF
E8540AF51M
4820-01-230-1198INTERCHANGEABLE
STEM,FLUID VALVE
8540 PIECE 4
5305-01-263-8487INTERCHANGEABLE
SCREW,MACHINE
8540
6130-01-369-0070INTERCHANGEABLE
POWER SUPPLY
8540

Frequently Asked Questions

What is NSN 5310-00-262-0359?

NSN 5310-00-262-0359 is a Washer,lock, manufactured by Us Army Aviation and Missile Command, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-262-0359?

NSN 5310-00-262-0359 has 2 cross-referenced part numbers: 7612520 (Us Army Aviation and Missile Command), 8540 (Cessna Aircraft Co Arc Avionics Div).

What NSN replaces 5310-00-262-0359?

There are 12 known substitutes for 5310-00-262-0359: 4940-00-006-0965, 5365-00-133-3662, 5950-00-229-9797 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7612520?

Key specifications for 7612520: Material Thickness: 0.022 INCHES NOMINAL IN; Style Designator: FLAT INTERNAL TEETH; Material: COPPER ALLOY OVERALL; Outside Diameter: 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-262-0359 still in active supply?

NSN 5310-00-262-0359 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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