PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12088-1Washer,keyway

Rosemount Analytical, Inc. Div Process Analytical Division · NSN 5310-00-235-1598 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-235-1598 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-235-1598. Primary manufacturer part number: 12088-1.
Features
  • Washer,keyway — FSC 5310
  • Material Thickness: 0.049 INCHES NOMINAL IN
  • Material: STEEL CORROSION RESISTING OVERALL
  • External Keyway Width: 0.094 INCHES NOMINAL IN
  • Hole Diameter: 0.125 INCHES NOMINAL IN
  • Outside Diameter: 0.987 INCHES NOMINAL IN
  • External Keyway Length: 0.281 INCHES NOMINAL IN
  • 1 verified cross-reference
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Washer,keyway, cataloged under National Stock Number 5310-00-235-1598, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rosemount Analytical, Inc. Div Process Analytical Division. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-235-1598
Primary Part Number12088-1
Item NameWasher,keyway
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRosemount Analytical, Inc. Div Process Analytical Division
StatusACTIVE
Material Thickness0.049 INCHES NOMINAL IN
MaterialSTEEL CORROSION RESISTING OVERALL
External Keyway Width0.094 INCHES NOMINAL IN
Hole Diameter0.125 INCHES NOMINAL IN
Outside Diameter0.987 INCHES NOMINAL IN
External Keyway Length0.281 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-00-687-1174 INTERCHANGEABLE
Relay,electromagnetic
4320-01-421-8518 INTERCHANGEABLE
Plug,pump
Cross-Reference Index
Part NumberManufacturer
12088-1 Rosemount Analytical, Inc. Div Process Analytical Division (USA)
Related Parts
5945-00-687-1174INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
4320-01-421-8518INTERCHANGEABLE
PLUG,PUMP

Frequently Asked Questions

What is NSN 5310-00-235-1598?

NSN 5310-00-235-1598 is a Washer,keyway, manufactured by Rosemount Analytical, Inc. Div Process Analytical Division, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-235-1598?

NSN 5310-00-235-1598 has 1 cross-referenced part number: 12088-1 (Rosemount Analytical, Inc. Div Process Analytical Division).

What NSN replaces 5310-00-235-1598?

There are 2 known substitutes for 5310-00-235-1598: 5945-00-687-1174, 4320-01-421-8518. Verify interchangeability with system specifications before substitution.

What are the specifications of 12088-1?

Key specifications for 12088-1: Material Thickness: 0.049 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL; External Keyway Width: 0.094 INCHES NOMINAL IN; Hole Diameter: 0.125 INCHES NOMINAL 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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