PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B809-1306Washer,key

Essex Electro Engineers Inc · NSN 5310-00-177-7655 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-177-7655 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-177-7655. Primary manufacturer part number: B809-1306.
Features
  • Washer,key — FSC 5310
  • Style Designator: KEY
  • Features Provided: CASEHARDENED
  • Distance From Centerline to Top of Internal Key: 0.341 INCHES MINIMUM AND 0.351 INCHES MAXIMUM IN
  • Outside Diameter: 1.687 INCHES MINIMUM AND 1.702 INCHES MAXIMUM IN
  • Material Thickness: 0.119 INCHES NOMINAL IN
  • Internal Key Quantity: 1
  • Hole Diameter: 1.005 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,key, cataloged under National Stock Number 5310-00-177-7655, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Essex Electro Engineers Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-177-7655
Primary Part NumberB809-1306
Item NameWasher,key
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerEssex Electro Engineers Inc
StatusCANCELLED
Style DesignatorKEY
Features ProvidedCASEHARDENED
Distance From Centerline to Top of Internal Key0.341 INCHES MINIMUM AND 0.351 INCHES MAXIMUM IN
Outside Diameter1.687 INCHES MINIMUM AND 1.702 INCHES MAXIMUM IN
Material Thickness0.119 INCHES NOMINAL IN
Internal Key Quantity1
Hole Diameter1.005 INCHES MINIMUM AND 1.015 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Internal Straight Key Width0.141 INCHES MINIMUM AND 0.156 INCHES MAXIMUM IN
Material Document and ClassificationC1018 FSCM 22938 MFR REF SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3110-00-156-5363177009-35 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
3110-00-156-7967 INTERCHANGEABLE
Bearing,ball,annular
6515-00-171-145738-5316-1 INTERCHANGEABLE
Intravenous Injection Set
Becton Dickinson and Co Acutecare Div
5820-00-200-583850019 INTERCHANGEABLE
Holder Assy
Apw Electronic Solutions
5306-00-243-8343 INTERCHANGEABLE
Bolt,eye
5330-00-291-639713716 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
3120-00-330-9941SC-B-69494 INTERCHANGEABLE
Bearing Set,sleeve
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2990-00-374-10735316N INTERCHANGEABLE
Muffler,exhaust
Cummins Filtration Inc.
2520-00-395-772214132 INTERCHANGEABLE
Breather
Falls Filtration Technologies, Inc.
2530-00-466-954750019 INTERCHANGEABLE
Plate,lock Nut Adju
Trw Inc Trw Commercial Steering Div
Cross-Reference Index
Part NumberManufacturer
35360080 Clark Equipment Co Div Doosan Infracore Portable Power (USA)
65A0578-2 Pdi Ground Support Systems, Inc. (USA)
5001/9 Oshkosh Aerotech Uk Limited (GBR)
B809-1306 PRIMARY Essex Electro Engineers Inc (USA)
4702-2 PRIMARY Pdi Ground Support Systems, Inc. (USA)
4702-2 Seyer Industries, Inc. Dba Seyer Industries Inc (USA)
5316 Savoy Mfg Inc (USA)
Related Parts
3110-00-156-5363INTERCHANGEABLE
BEARING,BALL,ANNULAR
177009-35
3110-00-156-7967INTERCHANGEABLE
BEARING,BALL,ANNULAR
6515-00-171-1457INTERCHANGEABLE
INTRAVENOUS INJECTION SET
38-5316-1
5820-00-200-5838INTERCHANGEABLE
HOLDER ASSY
50019
5306-00-243-8343INTERCHANGEABLE
BOLT,EYE
5330-00-291-6397INTERCHANGEABLE
SEAL,PLAIN ENCASED
13716
3120-00-330-9941INTERCHANGEABLE
BEARING SET,SLEEVE
SC-B-69494
2990-00-374-1073INTERCHANGEABLE
MUFFLER,EXHAUST
5316N
2520-00-395-7722INTERCHANGEABLE
BREATHER
14132
2530-00-466-9547INTERCHANGEABLE
PLATE,LOCK NUT ADJU
50019
6685-00-527-7952INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
1270-00-535-1223INTERCHANGEABLE
PLATE,BOTTOM,CONTRO

Frequently Asked Questions

What is NSN 5310-00-177-7655?

NSN 5310-00-177-7655 is a Washer,key, manufactured by Essex Electro Engineers Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-177-7655?

NSN 5310-00-177-7655 has 7 cross-referenced part numbers: 35360080 (Clark Equipment Co Div Doosan Infracore Portable Power), 65A0578-2 (Pdi Ground Support Systems, Inc.), 5001/9 (Oshkosh Aerotech Uk Limited), B809-1306 (Essex Electro Engineers Inc), 4702-2 (Pdi Ground Support Systems, Inc.) and 2 more.

What NSN replaces 5310-00-177-7655?

There are 12 known substitutes for 5310-00-177-7655: 3110-00-156-5363, 3110-00-156-7967, 6515-00-171-1457 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B809-1306?

Key specifications for B809-1306: Style Designator: KEY; Features Provided: CASEHARDENED; Distance From Centerline to Top of Internal Key: 0.341 INCHES MINIMUM AND 0.351 INCHES MAXIMUM IN; Outside Diameter: 1.687 INCHES MINIMUM AND 1.702 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-177-7655 still in active supply?

NSN 5310-00-177-7655 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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