PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803-1623943 PC 18Washer,recessed

Naval Ship Systems Command · NSN 5310-01-469-0725 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-469-0725 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-469-0725. Primary manufacturer part number: 803-1623943 PC 18.
Features
  • Washer,recessed — FSC 5310
  • Outside Diameter: 0.526 INCHES NOMINAL IN
  • Recess Angle: 90.0 DEGREES NOMINAL
  • Hole Diameter: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
  • Material Thickness: 0.094 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Recess Diameter: 0.438 INCHES NOMINAL IN
  • Style Designator: RECESSED
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy Overall construction
General Description

The Washer,recessed, cataloged under National Stock Number 5310-01-469-0725, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Ship Systems Command. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-469-0725
Primary Part Number803-1623943 PC 18
Item NameWasher,recessed
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNaval Ship Systems Command
StatusACTIVE
Outside Diameter0.526 INCHES NOMINAL IN
Recess Angle90.0 DEGREES NOMINAL
Hole Diameter0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
Material Thickness0.094 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Recess Diameter0.438 INCHES NOMINAL IN
Style DesignatorRECESSED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2040-01-364-4498803-1623943 PIECE 55 INTERCHANGEABLE
Spider,dog,scuttle
Naval Ship Systems Command
2040-01-458-6320803-1623943 PC54 INTERCHANGEABLE
Dog,door,marine
Naval Ship Systems Command
3040-01-469-9365803-1041890 PC 49 INTERCHANGEABLE
Connecting Link,rigid
Naval Sea Systems Command
3040-01-470-2558805-1623943 PC17 INTERCHANGEABLE
Bracket,eye,rotating Shaft
Naval Ship Systems Command
3040-01-470-3625803-1623943 PC21 INTERCHANGEABLE
Pad Brace
Naval Sea Systems Command
2040-01-501-4442803-1401890 PC 29 INTERCHANGEABLE
Wear Plate,door,marine
Naval Sea Systems Command
3040-01-501-4554803-1401890 PC 48 INTERCHANGEABLE
Connecting Link,rigid
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
803-1623943 PC 18 PRIMARY Naval Ship Systems Command (USA)
1623943 Naval Ship Systems Command (USA)
Related Parts
2040-01-364-4498INTERCHANGEABLE
SPIDER,DOG,SCUTTLE
803-1623943 PIECE 55
2040-01-458-6320INTERCHANGEABLE
DOG,DOOR,MARINE
803-1623943 PC54
3040-01-469-9365INTERCHANGEABLE
CONNECTING LINK,RIGID
803-1041890 PC 49
3040-01-470-2558INTERCHANGEABLE
BRACKET,EYE,ROTATING SHAFT
805-1623943 PC17
3040-01-470-3625INTERCHANGEABLE
PAD BRACE
803-1623943 PC21
2040-01-501-4442INTERCHANGEABLE
WEAR PLATE,DOOR,MARINE
803-1401890 PC 29
3040-01-501-4554INTERCHANGEABLE
CONNECTING LINK,RIGID
803-1401890 PC 48

Frequently Asked Questions

What is NSN 5310-01-469-0725?

NSN 5310-01-469-0725 is a Washer,recessed, manufactured by Naval Ship Systems Command, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-469-0725?

NSN 5310-01-469-0725 has 2 cross-referenced part numbers: 803-1623943 PC 18 (Naval Ship Systems Command), 1623943 (Naval Ship Systems Command).

What NSN replaces 5310-01-469-0725?

There are 7 known substitutes for 5310-01-469-0725: 2040-01-364-4498, 2040-01-458-6320, 3040-01-469-9365 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803-1623943 PC 18?

Key specifications for 803-1623943 PC 18: Outside Diameter: 0.526 INCHES NOMINAL IN; Recess Angle: 90.0 DEGREES NOMINAL; Hole Diameter: 0.313 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN; Material Thickness: 0.094 INCHES NOMINAL IN. 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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