PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A380-9Washer,key

Seastrom Manufacturing Co Inc · NSN 5310-00-065-4512 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-065-4512 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-065-4512. Primary manufacturer part number: A380-9.
Features
  • Washer,key — FSC 5310
  • Overall Distance Including Keys: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
  • External Straight Key Width: 0.099 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
  • External Key Quantity: 12
  • Style Designator: KEY
  • Outside Diameter: 0.518 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
  • Material: STEEL COMP 302 OVERALL
  • Hole Diameter: 0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-065-4512, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Seastrom Manufacturing Co Inc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-065-4512
Primary Part NumberA380-9
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerSeastrom Manufacturing Co Inc
StatusACTIVE
Overall Distance Including Keys0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN
External Straight Key Width0.099 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN
External Key Quantity12
Style DesignatorKEY
Outside Diameter0.518 INCHES MINIMUM AND 0.538 INCHES MAXIMUM IN
MaterialSTEEL COMP 302 OVERALL
Hole Diameter0.310 INCHES MINIMUM AND 0.330 INCHES MAXIMUM IN
Material Document and Classification66 FED STD 1ST MATERIAL RESPONSE OVERALL
Material Thickness0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4130-00-119-1266 INTERCHANGEABLE
Chiller,water,refrigerating
5940-00-171-02450165PC8 INTERCHANGEABLE
Terminal Board
Lockheed Martin Corporation Div Rms - Mitchel Field
4310-00-423-1517772719C91 INTERCHANGEABLE
Ring,valve
Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/
5945-00-850-7101 INTERCHANGEABLE
Relay,electromagnetic
3030-00-896-0542B80 INTERCHANGEABLE
Belt,v
Emerson Electric Co Browning Mfg Div
Cross-Reference Index
Part NumberManufacturer
A380-9 PRIMARY Seastrom Manufacturing Co Inc (USA)
Related Parts
4130-00-119-1266INTERCHANGEABLE
CHILLER,WATER,REFRIGERATING
5940-00-171-0245INTERCHANGEABLE
TERMINAL BOARD
0165PC8
4310-00-423-1517INTERCHANGEABLE
RING,VALVE
772719C91
5945-00-850-7101INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
3030-00-896-0542INTERCHANGEABLE
BELT,V
B80

Frequently Asked Questions

What is NSN 5310-00-065-4512?

NSN 5310-00-065-4512 is a Washer,key, manufactured by Seastrom Manufacturing Co Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-065-4512?

NSN 5310-00-065-4512 has 1 cross-referenced part number: A380-9 (Seastrom Manufacturing Co Inc).

What NSN replaces 5310-00-065-4512?

There are 5 known substitutes for 5310-00-065-4512: 4130-00-119-1266, 5940-00-171-0245, 4310-00-423-1517 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A380-9?

Key specifications for A380-9: Overall Distance Including Keys: 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM IN; External Straight Key Width: 0.099 INCHES MINIMUM AND 0.119 INCHES MAXIMUM IN; External Key Quantity: 12; Style Designator: KEY. 9 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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