PartsTable TECHNICAL DATA SHEET
SEPTEMBER 2026Technical Data Sheet

124-4366739 PC 77Washer,flat

Naval Sea Systems Command · NSN 5310-01-469-9213 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-469-9213 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-469-9213. Primary manufacturer part number: 124-4366739 PC 77.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 1.062 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Surface Treatment Document and Classification: QQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Thickness: 0.136 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
  • Peripheral Shape Style: ROUND
  • Surface Treatment: ZINC OVERALL
  • Overall Diameter: 2.500 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-469-9213, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-469-9213
Primary Part Number124-4366739 PC 77
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Hole Diameter1.062 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationQQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Thickness0.136 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
Peripheral Shape StyleROUND
Surface TreatmentZINC OVERALL
Overall Diameter2.500 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
⇄ Verified Substitutes 6
3020-01-469-9935124-4399311 PC 29 X 30 INTERCHANGEABLE
Gear Sector,spur
Naval Sea Systems Command
3040-01-469-9975124-4399311 PC 15 INTERCHANGEABLE
Spindle,mechanically Actuated
Naval Sea Systems Command
3020-01-470-0512124-4399311 PC23 INTERCHANGEABLE
Gear,spur
Naval Sea Systems Command
5360-01-470-4297124-4399311PC54 INTERCHANGEABLE
Spring,helical,compression
Naval Sea Systems Command
3040-01-470-64524399311 PC 53 INTERCHANGEABLE
Plate,spring
Naval Sea Systems Command
5310-01-487-0390124-6293626 PC 107 INTERCHANGEABLE
Nut,plain,hexagon
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
124-4366739 PC 77 PRIMARY Naval Sea Systems Command (USA)
B18.22.1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
124-4399311 PC 60 PRIMARY Naval Sea Systems Command (USA)
4399311 Naval Sea Systems Command (USA)
4366739 Naval Sea Systems Command (USA)
Related Parts
3020-01-469-9935INTERCHANGEABLE
GEAR SECTOR,SPUR
124-4399311 PC 29 X 30
3040-01-469-9975INTERCHANGEABLE
SPINDLE,MECHANICALLY ACTUATED
124-4399311 PC 15
3020-01-470-0512INTERCHANGEABLE
GEAR,SPUR
124-4399311 PC23
5360-01-470-4297INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
124-4399311PC54
3040-01-470-6452INTERCHANGEABLE
PLATE,SPRING
4399311 PC 53
5310-01-487-0390INTERCHANGEABLE
NUT,PLAIN,HEXAGON
124-6293626 PC 107

Frequently Asked Questions

What is NSN 5310-01-469-9213?

NSN 5310-01-469-9213 is a Washer,flat, manufactured by Naval Sea Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-469-9213?

NSN 5310-01-469-9213 has 5 cross-referenced part numbers: 124-4366739 PC 77 (Naval Sea Systems Command), B18.22.1 (American National Standards Institute Incorporated Dba American National Standards Institute), 124-4399311 PC 60 (Naval Sea Systems Command), 4399311 (Naval Sea Systems Command), 4366739 (Naval Sea Systems Command).

What NSN replaces 5310-01-469-9213?

There are 6 known substitutes for 5310-01-469-9213: 3020-01-469-9935, 3040-01-469-9975, 3020-01-470-0512 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124-4366739 PC 77?

Key specifications for 124-4366739 PC 77: Hole Diameter: 1.062 INCHES NOMINAL IN; Material: STEEL OVERALL; Surface Treatment Document and Classification: QQ-Z-325,TY II,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thickness: 0.136 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN. 10 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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