PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

123-31Washer,flat

Avionics Specialties, Inc. · NSN 5310-00-071-2714 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-071-2714 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-071-2714. Primary manufacturer part number: 123-31.
Features
  • Washer,flat — FSC 5310
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.164 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Overall Diameter: 0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
  • Thickness: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
  • Surface Treatment: PASSIVATE OVERALL
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-071-2714, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Avionics Specialties, Inc.. Government technical data includes 8 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
NSN5310-00-071-2714
Primary Part Number123-31
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerAvionics Specialties, Inc.
StatusACTIVE
Peripheral Shape StyleROUND
Hole Diameter0.164 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Overall Diameter0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN
Thickness0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Surface TreatmentPASSIVATE OVERALL
Center Hole Shape StyleROUND
MaterialSTEEL CORROSION RESISTING OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5133-00-227-9674 INTERCHANGEABLE
Drill,twist
3030-00-812-3523 INTERCHANGEABLE
Belts,v,matched Set
3120-01-143-046912331 INTERCHANGEABLE
Bushing,rocker Arm
Westerbeke Corporation
4320-01-230-3336 INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
6515-01-576-5505J664K INTERCHANGEABLE
Instrument Tray,ophthalmic Surge
Jorgensen Laboratories, Inc. Dba Jorgensen Laboratories Inc
5305-01-607-63771233-1 INTERCHANGEABLE
Screw,machine
Terex Usa, Llc Dba Terex Usa, Llc
6120-01-698-641112331 INTERCHANGEABLE
Transformer,power
Gaylord Marine Services, Inc.
Cross-Reference Index
Part NumberManufacturer
04056686006313 Diehl Defence Gmbh & Co. Kg (DEU)
123-31 PRIMARY Avionics Specialties, Inc. (USA)
10163820 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5133-00-227-9674INTERCHANGEABLE
DRILL,TWIST
3030-00-812-3523INTERCHANGEABLE
BELTS,V,MATCHED SET
3120-01-143-0469INTERCHANGEABLE
BUSHING,ROCKER ARM
12331
4320-01-230-3336INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
6515-01-576-5505INTERCHANGEABLE
INSTRUMENT TRAY,OPHTHALMIC SURGE
J664K
5305-01-607-6377INTERCHANGEABLE
SCREW,MACHINE
1233-1
6120-01-698-6411INTERCHANGEABLE
TRANSFORMER,POWER
12331

Frequently Asked Questions

What is NSN 5310-00-071-2714?

NSN 5310-00-071-2714 is a Washer,flat, manufactured by Avionics Specialties, Inc., classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-071-2714?

NSN 5310-00-071-2714 has 3 cross-referenced part numbers: 04056686006313 (Diehl Defence Gmbh & Co. Kg), 123-31 (Avionics Specialties, Inc.), 10163820 (Nimikkeistokeskus Ncb Finland).

What NSN replaces 5310-00-071-2714?

There are 7 known substitutes for 5310-00-071-2714: 5133-00-227-9674, 3030-00-812-3523, 3120-01-143-0469 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 123-31?

Key specifications for 123-31: Peripheral Shape Style: ROUND; Hole Diameter: 0.164 INCHES MINIMUM AND 0.172 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Overall Diameter: 0.295 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN. 8 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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