PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

145-8Washer,keyway

Harbormaster Marine, Inc · NSN 5310-00-308-6715 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-308-6715 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-308-6715. Primary manufacturer part number: 145-8.
Features
  • Washer,keyway — FSC 5310
  • Internal Keyway Quantity: 10
  • Material: STEEL OVERALL
  • Outside Diameter: 2.500 INCHES NOMINAL IN
  • Material Thickness: 0.122 INCHES NOMINAL IN
  • Hole Diameter: 1.372 INCHES NOMINAL IN
  • Internal Keyway Width: 0.250 INCHES NOMINAL IN
  • Distance From Centerline to Bottom of Internal Keyway: 0.750 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,keyway, cataloged under National Stock Number 5310-00-308-6715, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Harbormaster Marine, Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-308-6715
Primary Part Number145-8
Item NameWasher,keyway
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHarbormaster Marine, Inc
StatusCANCELLED
Internal Keyway Quantity10
MaterialSTEEL OVERALL
Outside Diameter2.500 INCHES NOMINAL IN
Material Thickness0.122 INCHES NOMINAL IN
Hole Diameter1.372 INCHES NOMINAL IN
Internal Keyway Width0.250 INCHES NOMINAL IN
Distance From Centerline to Bottom of Internal Keyway0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
1560-00-029-845622175 INTERCHANGEABLE
Fuselage Asy
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
3830-00-164-848616451 INTERCHANGEABLE
Cutting Edge,moldboard
Wausau Equipment Company Llc Dba Schmidt Engineering & Equipment Inc Div Wausau Equipment Llc
5331-00-171-9918 INTERCHANGEABLE
O-Ring
6625-00-445-2224 INTERCHANGEABLE
Board,matrix
5962-01-141-6961587-548 INTERCHANGEABLE
Microcircuit,digital
Ampex Data Systems Corporation Dba Ampex Intelligent Systems
1395-01-725-182622175 INTERCHANGEABLE
Tailpiece,cartridge,non-Lethal F
Axon Enterprise, Inc.
Cross-Reference Index
Part NumberManufacturer
22175 Hurst Industries Inc (USA)
587548 Atwood Fence Co Inc (USA)
587548 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
145-8 PRIMARY Harbormaster Marine, Inc (USA)
Related Parts
1560-00-029-8456INTERCHANGEABLE
FUSELAGE ASY
22175
3830-00-164-8486INTERCHANGEABLE
CUTTING EDGE,MOLDBOARD
16451
5331-00-171-9918INTERCHANGEABLE
O-RING
6625-00-445-2224INTERCHANGEABLE
BOARD,MATRIX
5962-01-141-6961INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
587-548
1395-01-725-1826INTERCHANGEABLE
TAILPIECE,CARTRIDGE,NON-LETHAL F
22175

Frequently Asked Questions

What is NSN 5310-00-308-6715?

NSN 5310-00-308-6715 is a Washer,keyway, manufactured by Harbormaster Marine, Inc, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-308-6715?

NSN 5310-00-308-6715 has 4 cross-referenced part numbers: 22175 (Hurst Industries Inc), 587548 (Atwood Fence Co Inc), 587548 (Chrysler Realty Company Llc Dba Daimler Chrysler), 145-8 (Harbormaster Marine, Inc).

What NSN replaces 5310-00-308-6715?

There are 6 known substitutes for 5310-00-308-6715: 1560-00-029-8456, 3830-00-164-8486, 5331-00-171-9918 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 145-8?

Key specifications for 145-8: Internal Keyway Quantity: 10; Material: STEEL OVERALL; Outside Diameter: 2.500 INCHES NOMINAL IN; Material Thickness: 0.122 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-308-6715 still in active supply?

NSN 5310-00-308-6715 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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