PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3027Washer,keyway

Hydronic Corp · NSN 5310-01-231-5187 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-231-5187 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-231-5187. Primary manufacturer part number: 3027.
Features
  • Washer,keyway — FSC 5310
  • Internal Keyway Quantity: 12
  • Material: STEEL COMP 1213 OVERALL
  • Material Thickness: 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
  • Outside Diameter: 1.105 INCHES MINIMUM AND 1.107 INCHES MAXIMUM IN
  • Hole Diameter: 0.375 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Hydronic Corp
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 1213 Overall construction
General Description

The Washer,keyway, cataloged under National Stock Number 5310-01-231-5187, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hydronic Corp. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-231-5187
Primary Part Number3027
Item NameWasher,keyway
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHydronic Corp
StatusACTIVE
Internal Keyway Quantity12
MaterialSTEEL COMP 1213 OVERALL
Material Thickness0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Outside Diameter1.105 INCHES MINIMUM AND 1.107 INCHES MAXIMUM IN
Hole Diameter0.375 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-30953984 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Rbc Bearings Incorporated Div West Trenton Division
6740-00-126-6026 INTERCHANGEABLE
Tank,processing,photographic
5940-00-204-79113027 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
4510-00-216-54663027 INTERCHANGEABLE
Plate,top,valve
Crest Good Manufacturing Co Inc
5945-00-258-57723027 INTERCHANGEABLE
Relay,electromagnetic
Olympic Controls Corp
4820-00-529-1497C20S INTERCHANGEABLE
Valve,check
Deltrol Corp Deltrol Fluid Products Div
5820-01-010-04903027 INTERCHANGEABLE
Connector
Electro-Metrics Corporation Dba Electro-Metrics
4820-01-086-99323027 INTERCHANGEABLE
Cock,drain
Andrew Llc
5340-01-164-0141 INTERCHANGEABLE
Snap Hook
4820-01-245-9130232A2PP INTERCHANGEABLE
Valve,check
Circor Aerospace, Inc. Dba Circor Aerospace Inc
Cross-Reference Index
Part NumberManufacturer
3027 Hydronic Corp (USA)
3162061006 Foundation Equipment Corp (USA)
Related Parts
3110-00-100-3095INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
3984
6740-00-126-6026INTERCHANGEABLE
TANK,PROCESSING,PHOTOGRAPHIC
5940-00-204-7911INTERCHANGEABLE
TERMINAL,LUG
3027
4510-00-216-5466INTERCHANGEABLE
PLATE,TOP,VALVE
3027
5945-00-258-5772INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
3027
4820-00-529-1497INTERCHANGEABLE
VALVE,CHECK
C20S
5820-01-010-0490INTERCHANGEABLE
CONNECTOR
3027
4820-01-086-9932INTERCHANGEABLE
COCK,DRAIN
3027
5340-01-164-0141INTERCHANGEABLE
SNAP HOOK
4820-01-245-9130INTERCHANGEABLE
VALVE,CHECK
232A2PP
5340-01-306-5605INTERCHANGEABLE
STANDOFF,HINGED,THREADED
17360-B-0440-28
5930-01-332-9856INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
3027

Frequently Asked Questions

What is NSN 5310-01-231-5187?

NSN 5310-01-231-5187 is a Washer,keyway, manufactured by Hydronic Corp, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-231-5187?

NSN 5310-01-231-5187 has 2 cross-referenced part numbers: 3027 (Hydronic Corp), 3162061006 (Foundation Equipment Corp).

What NSN replaces 5310-01-231-5187?

There are 12 known substitutes for 5310-01-231-5187: 3110-00-100-3095, 6740-00-126-6026, 5940-00-204-7911 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3027?

Key specifications for 3027: Internal Keyway Quantity: 12; Material: STEEL COMP 1213 OVERALL; Material Thickness: 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Special Features: ONE OUTSIDE CORNER CHAMFERED 45.0 DEG AND 0.095 IN. CHAMFER LENGTH IN. 6 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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