PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

124-4322618 PC 29Washer,flat

Naval Sea Systems Command · NSN 5310-01-472-9399 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-472-9399 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-472-9399. Primary manufacturer part number: 124-4322618 PC 29.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER ALLOY OVERALL
  • Hole Diameter: 2.2812 INCHES NOMINAL IN
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Peripheral Shape Style: ROUND
  • Material Document and Classification: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
  • Surface Treatment Document and Classification: QQ-P-416,TYPE I,CLASS C FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE II,CLASS 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-472-9399, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references 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
NSN5310-01-472-9399
Primary Part Number124-4322618 PC 29
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Hole Diameter2.2812 INCHES NOMINAL IN
Surface TreatmentCADMIUM OR ZINC OVERALL
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Surface Treatment Document and ClassificationQQ-P-416,TYPE I,CLASS C FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TYPE II,CLASS 2 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Thickness0.125 INCHES NOMINAL IN
Overall Diameter3.000 INCHES NOMINAL IN
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5305-01-472-9345124-4322618 PC 14 INTERCHANGEABLE
Screw,externally Relieved Body
Naval Sea Systems Command
5342-01-474-8055124-4322618 PC 2 INTERCHANGEABLE
Dog,door-Hatch
Naval Sea Systems Command
3040-01-474-8097124-4322618 PC3 INTERCHANGEABLE
Spindle,mechanically Actuated
Naval Sea Systems Command
3040-01-474-8955124-4322618 PC 20A INTERCHANGEABLE
Spindle,mechanically Actuated
Naval Sea Systems Command
2040-01-475-4940124-4322618 ASSY 81 INTERCHANGEABLE
Dog Assembly,hatch
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
124-4322618 PC 29 PRIMARY Naval Sea Systems Command (USA)
4322618 Naval Sea Systems Command (USA)
124-558825 PC 2 Naval Sea Systems Command (USA)
Related Parts
5305-01-472-9345INTERCHANGEABLE
SCREW,EXTERNALLY RELIEVED BODY
124-4322618 PC 14
5342-01-474-8055INTERCHANGEABLE
DOG,DOOR-HATCH
124-4322618 PC 2
3040-01-474-8097INTERCHANGEABLE
SPINDLE,MECHANICALLY ACTUATED
124-4322618 PC3
3040-01-474-8955INTERCHANGEABLE
SPINDLE,MECHANICALLY ACTUATED
124-4322618 PC 20A
2040-01-475-4940INTERCHANGEABLE
DOG ASSEMBLY,HATCH
124-4322618 ASSY 81

Frequently Asked Questions

What is NSN 5310-01-472-9399?

NSN 5310-01-472-9399 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 5310-01-472-9399?

NSN 5310-01-472-9399 has 3 cross-referenced part numbers: 124-4322618 PC 29 (Naval Sea Systems Command), 4322618 (Naval Sea Systems Command), 124-558825 PC 2 (Naval Sea Systems Command).

What NSN replaces 5310-01-472-9399?

There are 5 known substitutes for 5310-01-472-9399: 5305-01-472-9345, 5342-01-474-8055, 3040-01-474-8097 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 124-4322618 PC 29?

Key specifications for 124-4322618 PC 29: Material: COPPER ALLOY OVERALL; Hole Diameter: 2.2812 INCHES NOMINAL IN; Surface Treatment: CADMIUM OR ZINC OVERALL; Peripheral Shape Style: ROUND. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com