PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R406PC14Washer,flat

Circor Naval Solutions Llc Dba Warren Pumps · NSN 5310-00-540-7666 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-540-7666 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-540-7666. Primary manufacturer part number: R406PC14.
Features
  • Washer,flat — FSC 5310
  • Material: COPPER ALLOY AND NICKEL ALLOY OVERALL
  • Material Document and Classification: QQ-N-281,CLASS A FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Center Hole Shape Style: ROUND
  • Peripheral Shape Style: ROUND
  • Hole Diameter: 0.656 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.312 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy and Nickel Alloy Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-540-7666, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 8 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-540-7666
Primary Part NumberR406PC14
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
MaterialCOPPER ALLOY AND NICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281,CLASS A FED SPEC ALL MATERIAL RESPONSES OVERALL
Center Hole Shape StyleROUND
Peripheral Shape StyleROUND
Hole Diameter0.656 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.312 INCHES NOMINAL IN
Overall Diameter1.562 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5961-00-284-5995 INTERCHANGEABLE
Semiconductor Device,diode
3040-00-757-9290K1-1 INTERCHANGEABLE
Hub,body
Roller Bearing Co of America, Inc Div Pic Design
4730-00-826-4278A8073 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Mueller Brass Co.
5120-01-197-2908 INTERCHANGEABLE
Screwdriver,cross Tip
5130-01-300-4996K-11 INTERCHANGEABLE
Cutter,fabric,portable,electric
Hawkeye Enterprises Inc
5130-01-344-2947K11 INTERCHANGEABLE
Wheel,abrasive
Sioux Tools Inc
Cross-Reference Index
Part NumberManufacturer
R406PC14 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
K11 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5961-00-284-5995INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
3040-00-757-9290INTERCHANGEABLE
HUB,BODY
K1-1
4730-00-826-4278INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
A8073
5120-01-197-2908INTERCHANGEABLE
SCREWDRIVER,CROSS TIP
5130-01-300-4996INTERCHANGEABLE
CUTTER,FABRIC,PORTABLE,ELECTRIC
K-11
5130-01-344-2947INTERCHANGEABLE
WHEEL,ABRASIVE
K11

Frequently Asked Questions

What is NSN 5310-00-540-7666?

NSN 5310-00-540-7666 is a Washer,flat, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-540-7666?

NSN 5310-00-540-7666 has 2 cross-referenced part numbers: R406PC14 (Circor Naval Solutions Llc Dba Warren Pumps), K11 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 5310-00-540-7666?

There are 6 known substitutes for 5310-00-540-7666: 5961-00-284-5995, 3040-00-757-9290, 4730-00-826-4278 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R406PC14?

Key specifications for R406PC14: Material: COPPER ALLOY AND NICKEL ALLOY OVERALL; Material Document and Classification: QQ-N-281,CLASS A FED SPEC ALL MATERIAL RESPONSES OVERALL; Center Hole Shape Style: ROUND; Peripheral Shape Style: ROUND. 9 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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