PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

H40-0003-004Washer,flat

L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications · NSN 5310-00-045-5206 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-045-5206 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-045-5206. Primary manufacturer part number: H40-0003-004.
Features
  • Washer,flat — FSC 5310
  • Cross-Sectional Shape Style: RECTANGULAR
  • Thickness: 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
  • Material: COPPER ALLOY 11 OVERALL
  • Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND E CLASS
  • Surface Treatment: OXIDE FILM OVERALL
  • Hole Diameter: 0.183 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Copper Alloy 11 Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-045-5206, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-045-5206
Primary Part NumberH40-0003-004
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerL3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
MaterialCOPPER ALLOY 11 OVERALL
Nondefinitive Spec/std DataA TYPE AND 1 GRADE AND E CLASS
Surface TreatmentOXIDE FILM OVERALL
Hole Diameter0.183 INCHES MINIMUM AND 0.196 INCHES MAXIMUM IN
Center Hole Shape StyleROUND
Surface Treatment Document and ClassificationMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Peripheral Shape StyleROUND
Material Document and ClassificationQQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
ColorBLACK OVERALL
Overall Diameter0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
2840-00-859-1096355098 INTERCHANGEABLE
Seal,metallic,aircraft Gas Turbi
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4730-00-996-44802985 INTERCHANGEABLE
Adapter
Raytheon Company
3020-01-070-68242985 INTERCHANGEABLE
Gear,internal
Stromag Inc
6515-01-419-4304 INTERCHANGEABLE
Light,ear Examination
4910-01-459-34922985 INTERCHANGEABLE
Reel and Hose Assembly,water Dis
Fisher Manufacturing Co.
4720-01-470-76562985 INTERCHANGEABLE
Tubing Assembly,nonmetallic
Cox & Company, Inc. Dba Cox & Co Inc
5975-01-479-78162985 INTERCHANGEABLE
Bushing,electrical Conduit
Better Engineering Manufacturing Inc
6540-01-552-521010A-051 INTERCHANGEABLE
Charts,fundus
Coopersurgical Inc Dba Coopersurgical Products
9310-01-608-49792985 INTERCHANGEABLE
Paper,cover
3 Star Papers Ltd Dba Limited Papers Div Limited Papers
4460-01-633-64872985 INTERCHANGEABLE
Filter,air,electrostatic
Wix Corp
Cross-Reference Index
Part NumberManufacturer
507487-8 Raytheon Company Dba Raytheon (USA)
04-50600 Zf Industrieantriebe Witten Gmbh (DEU)
1445 Federal Screw Products, Inc. (USA)
H40-0003-004 PRIMARY L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
1445ADX Airdale Express Llc Div Airdale Express (USA)
104-1B8L Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
MS15795-907X Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2985 Siemens Water Technologies Corp. Div Wallace & Tiernan Products (USA)
FFW92 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
507487-1008 Raytheon Company Dba Raytheon (USA)
MS15795-907X PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
3885-12 North and Judd Inc Wilcox-Crittenden Div (USA)
446147 CAGE 00000
Related Parts
2840-00-859-1096INTERCHANGEABLE
SEAL,METALLIC,AIRCRAFT GAS TURBI
355098
4730-00-996-4480INTERCHANGEABLE
ADAPTER
2985
3020-01-070-6824INTERCHANGEABLE
GEAR,INTERNAL
2985
6515-01-419-4304INTERCHANGEABLE
LIGHT,EAR EXAMINATION
4910-01-459-3492INTERCHANGEABLE
REEL AND HOSE ASSEMBLY,WATER DIS
2985
4720-01-470-7656INTERCHANGEABLE
TUBING ASSEMBLY,NONMETALLIC
2985
5975-01-479-7816INTERCHANGEABLE
BUSHING,ELECTRICAL CONDUIT
2985
6540-01-552-5210INTERCHANGEABLE
CHARTS,FUNDUS
10A-051
9310-01-608-4979INTERCHANGEABLE
PAPER,COVER
2985
4460-01-633-6487INTERCHANGEABLE
FILTER,AIR,ELECTROSTATIC
2985

Frequently Asked Questions

What is NSN 5310-00-045-5206?

NSN 5310-00-045-5206 is a Washer,flat, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-045-5206?

NSN 5310-00-045-5206 has 13 cross-referenced part numbers: 507487-8 (Raytheon Company Dba Raytheon), 04-50600 (Zf Industrieantriebe Witten Gmbh), 1445 (Federal Screw Products, Inc.), H40-0003-004 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 1445ADX (Airdale Express Llc Div Airdale Express) and 8 more.

What NSN replaces 5310-00-045-5206?

There are 10 known substitutes for 5310-00-045-5206: 2840-00-859-1096, 4730-00-996-4480, 3020-01-070-6824 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of H40-0003-004?

Key specifications for H40-0003-004: Cross-Sectional Shape Style: RECTANGULAR; Thickness: 0.036 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Material: COPPER ALLOY 11 OVERALL; Nondefinitive Spec/std Data: A TYPE AND 1 GRADE AND E CLASS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-045-5206 still in active supply?

NSN 5310-00-045-5206 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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