PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10-10-12AWasher,flat

Hass Instrument Corporation · NSN 5310-00-580-1581 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-580-1581 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-580-1581. Primary manufacturer part number: 10-10-12A.
Features
  • Washer,flat — FSC 5310
  • Material: PLASTIC OVERALL
  • Overall Diameter: 0.625 INCHES NOMINAL IN
  • Center Hole Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.062 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.380 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-580-1581, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hass Instrument Corporation. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5310-00-580-1581
Primary Part Number10-10-12A
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHass Instrument Corporation
StatusACTIVE
MaterialPLASTIC OVERALL
Overall Diameter0.625 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.062 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Hole Diameter0.380 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-010-1012101012 INTERCHANGEABLE
Screw,machine
General Motors Llc Dba General Motors Llc
4220-00-066-60341010-12 INTERCHANGEABLE
Cap
Aqualung Usa, Inc
5950-00-372-2416375-1075P1 INTERCHANGEABLE
Coil,radio Frequency
Raytheon Company Dba Raytheon Co
5340-00-663-0417B 1010-12 INTERCHANGEABLE
Handle,bow
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
4240-00-776-70401010-13NM INTERCHANGEABLE
Cap
Aqualung Usa, Inc
5945-01-027-84802239-2 INTERCHANGEABLE
Relay,solid State
Curtiss-Wright Controls Electronic Systems, Inc.
6515-01-054-4393101012 INTERCHANGEABLE
Forceps,hemostatic
Pilling Surgical Inc Dba Pilling Weck Div Pilling Instruments
5315-01-063-894810-1012 INTERCHANGEABLE
Key,machine
Fabwright Inc
6340-01-068-421010-1012 INTERCHANGEABLE
Fire,overheat,detector
Kidde Technologies, Inc Div Kidde Aerospace and Defense
5905-01-194-1439101-012 INTERCHANGEABLE
Resistor,fixed,film
Panametrics Llc
Cross-Reference Index
Part NumberManufacturer
10-10-12A Hass Instrument Corporation (USA)
10-10-12 Hass Instrument Corporation (USA)
Related Parts
5305-00-010-1012INTERCHANGEABLE
SCREW,MACHINE
101012
4220-00-066-6034INTERCHANGEABLE
CAP
1010-12
5950-00-372-2416INTERCHANGEABLE
COIL,RADIO FREQUENCY
375-1075P1
5340-00-663-0417INTERCHANGEABLE
HANDLE,BOW
B 1010-12
4240-00-776-7040INTERCHANGEABLE
CAP
1010-13NM
5945-01-027-8480INTERCHANGEABLE
RELAY,SOLID STATE
2239-2
6515-01-054-4393INTERCHANGEABLE
FORCEPS,HEMOSTATIC
101012
5315-01-063-8948INTERCHANGEABLE
KEY,MACHINE
10-1012
6340-01-068-4210INTERCHANGEABLE
FIRE,OVERHEAT,DETECTOR
10-1012
5905-01-194-1439INTERCHANGEABLE
RESISTOR,FIXED,FILM
101-012
2990-01-276-7585INTERCHANGEABLE
TANK,HEATER ENGINE
VH-TBV
5975-01-296-9663INTERCHANGEABLE
WYE,ELECTRICAL CONDUIT
101012

Frequently Asked Questions

What is NSN 5310-00-580-1581?

NSN 5310-00-580-1581 is a Washer,flat, manufactured by Hass Instrument Corporation, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-580-1581?

NSN 5310-00-580-1581 has 2 cross-referenced part numbers: 10-10-12A (Hass Instrument Corporation), 10-10-12 (Hass Instrument Corporation).

What NSN replaces 5310-00-580-1581?

There are 12 known substitutes for 5310-00-580-1581: 5305-00-010-1012, 4220-00-066-6034, 5950-00-372-2416 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10-10-12A?

Key specifications for 10-10-12A: Material: PLASTIC OVERALL; Overall Diameter: 0.625 INCHES NOMINAL IN; Center Hole Shape Style: ROUND; Cross-Sectional Shape Style: RECTANGULAR. 7 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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