PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

R8321664-177Washer,flat

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 5310-01-734-0595 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-734-0595 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-734-0595. Primary manufacturer part number: R8321664-177.
Features
  • Washer,flat — FSC 5310
  • Specification/standard Data: 96906-MS27183L GOVERNMENT SPECIFICATION
  • Hole Diameter: 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
  • Overall Diameter: 0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
  • Surface Treatment: ZINC NICKEL OVERALL
  • Center Hole Shape Style: ROUND
  • Material Document and Classification: ASTM A108 OR ASTM A109/A109M OR ASTMA1011/A1011M ANY TEMPER AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
  • Cross-Sectional Shape Style: RECTANGULAR
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 5310-01-734-0595, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-734-0595
Primary Part NumberR8321664-177
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
Specification/standard Data96906-MS27183L GOVERNMENT SPECIFICATION
Hole Diameter0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN
Overall Diameter0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN
Surface TreatmentZINC NICKEL OVERALL
Center Hole Shape StyleROUND
Material Document and ClassificationASTM A108 OR ASTM A109/A109M OR ASTMA1011/A1011M ANY TEMPER AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL
Cross-Sectional Shape StyleRECTANGULAR
Thickness0.051 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Surface Treatment Document and ClassificationMIL-PRF-32647, TYPE K16 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Peripheral Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5310-00-823-8803 INTERCHANGEABLE
Washer,flat
5310-01-317-1813 INTERCHANGEABLE
Washer,flat
5310-01-330-279354500-F INTERCHANGEABLE
Washer,flat
L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
5310-01-734-0500 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
R8321664-177 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
MS27183-14QX Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
LOA049060-177 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
218017953 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
752-8840871-177 Naval Sea Systems Command (USA)
MSMS27183-14QX Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27183 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-823-8803INTERCHANGEABLE
WASHER,FLAT
5310-01-317-1813INTERCHANGEABLE
WASHER,FLAT
5310-01-330-2793INTERCHANGEABLE
WASHER,FLAT
54500-F
5310-01-734-0500INTERCHANGEABLE
WASHER,FLAT

Frequently Asked Questions

What is NSN 5310-01-734-0595?

NSN 5310-01-734-0595 is a Washer,flat, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-734-0595?

NSN 5310-01-734-0595 has 7 cross-referenced part numbers: R8321664-177 (Electric Boat Corporation Div General Dynamics Electric Boat), MS27183-14QX (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), LOA049060-177 (Electric Boat Corporation Div General Dynamics Electric Boat), 218017953 (Electric Boat Corporation Div General Dynamics Electric Boat), 752-8840871-177 (Naval Sea Systems Command) and 2 more.

What NSN replaces 5310-01-734-0595?

There are 4 known substitutes for 5310-01-734-0595: 5310-00-823-8803, 5310-01-317-1813, 5310-01-330-2793 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of R8321664-177?

Key specifications for R8321664-177: Specification/standard Data: 96906-MS27183L GOVERNMENT SPECIFICATION; Part Name Assigned by Controlling Agency: WASHER FLAT (ROUND,STEEL,CADMIUM OR ZINC-NICKEL PLATED); Hole Diameter: 0.401 INCHES MINIMUM AND 0.421 INCHES MAXIMUM IN; Overall Diameter: 0.805 INCHES MINIMUM AND 0.827 INCHES MAXIMUM IN. 12 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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