PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4998Plate,retaining,shaft

Lear Siegler Inc Sherwood Div · NSN 3040-00-393-3384 · FSC 3040 · No Item Name Available
Verified by PartsTable
NSN 3040-00-393-3384 — this item is cataloged by the U.S. Government under National Stock Number 3040-00-393-3384. Primary manufacturer part number: 4998.
Features
  • Plate,retaining,shaft — FSC 3040
  • Mounting Hole Diameter: 0.400 INCHES NOMINAL IN
  • Aperture Diameter: 0.950 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Thickness: 0.816 INCHES NOMINAL IN
  • Mounting Hole Quantity: 4
  • Shape: SQUARE
  • 1 verified cross-reference
Applications
  • Applications requiring Copper Alloy construction
General Description

The Plate,retaining,shaft, cataloged under National Stock Number 3040-00-393-3384, is classified within Federal Supply Class 3040 (No Item Name Available) of the Mechanical Power Transmission Equipment group. The primary manufacturer of record is Lear Siegler Inc Sherwood Div. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3040-00-393-3384
Primary Part Number4998
Item NamePlate,retaining,shaft
FSC / FSG3040 / 30 — No Item Name Available
ManufacturerLear Siegler Inc Sherwood Div
StatusACTIVE
Mounting Hole Diameter0.400 INCHES NOMINAL IN
Aperture Diameter0.950 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Thickness0.816 INCHES NOMINAL IN
Mounting Hole Quantity4
ShapeSQUARE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5930-00-134-503611614131 INTERCHANGEABLE
Switch,rotary
U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-400-58344998 INTERCHANGEABLE
Washer,lock
Coffin Turbo Pump Inc
5310-01-498-52234998 INTERCHANGEABLE
Washer,flat
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
5340-01-572-478449-98 INTERCHANGEABLE
Plug,fusible
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
Cross-Reference Index
Part NumberManufacturer
4998 Lear Siegler Inc Sherwood Div (USA)
Related Parts
5930-00-134-5036INTERCHANGEABLE
SWITCH,ROTARY
11614131
5310-01-400-5834INTERCHANGEABLE
WASHER,LOCK
4998
5310-01-498-5223INTERCHANGEABLE
WASHER,FLAT
4998
5340-01-572-4784INTERCHANGEABLE
PLUG,FUSIBLE
49-98

Frequently Asked Questions

What is NSN 3040-00-393-3384?

NSN 3040-00-393-3384 is a Plate,retaining,shaft, manufactured by Lear Siegler Inc Sherwood Div, classified under FSC 3040 (No Item Name Available). Status: active.

What are the part numbers for NSN 3040-00-393-3384?

NSN 3040-00-393-3384 has 1 cross-referenced part number: 4998 (Lear Siegler Inc Sherwood Div).

What NSN replaces 3040-00-393-3384?

There are 4 known substitutes for 3040-00-393-3384: 5930-00-134-5036, 5310-01-400-5834, 5310-01-498-5223 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4998?

Key specifications for 4998: Mounting Hole Diameter: 0.400 INCHES NOMINAL IN; Aperture Diameter: 0.950 INCHES NOMINAL IN; Overall Width: 3.250 INCHES NOMINAL IN; Special Features: MTG HOLE SPACING: EQUALLY SPACED ON 3.250 IN. BOLT CIRCLE IN. 9 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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