PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40409Spacer,plate

Fleet Readiness Center East Div Department of Navy · NSN 5365-01-334-1338 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-334-1338 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-334-1338. Primary manufacturer part number: 40409.
Features
  • Spacer,plate — FSC 5365
  • Outside Diameter: 8.850 INCHES NOMINAL IN
  • Material Document and Classification: QQ-M-44 FED SPEC SINGLE MATERIAL RESPONSE
  • Hole Diameter: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
  • Bolt Circle Diameter: 8.100 INCHES NOMINAL IN
  • Aperture Diameter: 7.420 INCHES NOMINAL IN
  • Material: MAGNESIUM ALLOY AZ31B
  • Bolt Hole Quantity: 16
Applications
  • Applications requiring Magnesium Alloy Az31b construction
General Description

The Spacer,plate, cataloged under National Stock Number 5365-01-334-1338, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fleet Readiness Center East Div Department of Navy. Government technical data includes 7 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-334-1338
Primary Part Number40409
Item NameSpacer,plate
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerFleet Readiness Center East Div Department of Navy
StatusACTIVE
Outside Diameter8.850 INCHES NOMINAL IN
Material Document and ClassificationQQ-M-44 FED SPEC SINGLE MATERIAL RESPONSE
Hole Diameter0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
Bolt Circle Diameter8.100 INCHES NOMINAL IN
Aperture Diameter7.420 INCHES NOMINAL IN
MaterialMAGNESIUM ALLOY AZ31B
Bolt Hole Quantity16
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5961-00-112-3399 INTERCHANGEABLE
Transistor
5310-00-185-6486 INTERCHANGEABLE
Nut,plain,round
5950-00-803-2066 INTERCHANGEABLE
Transformer,power
5340-00-965-768740409 INTERCHANGEABLE
Cover,access
Eaton Corporation Dba Eaton Inoac
6645-01-421-550740409 INTERCHANGEABLE
Timer,cleaner,ultra
L & R Manufacturing Company
2610-01-576-4063 INTERCHANGEABLE
Inner Tube,pneumatic Tire,vehicu
5120-01-604-49164040-9 INTERCHANGEABLE
Step Plate,mechanical Puller
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5995-01-700-085540409 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Cables to Go
Cross-Reference Index
Part NumberManufacturer
40409 PRIMARY Fleet Readiness Center East Div Department of Navy (USA)
40409 Joint Oil Analysis Program Dba Department of Defense (USA)
Related Parts
5961-00-112-3399INTERCHANGEABLE
TRANSISTOR
5310-00-185-6486INTERCHANGEABLE
NUT,PLAIN,ROUND
5950-00-803-2066INTERCHANGEABLE
TRANSFORMER,POWER
5340-00-965-7687INTERCHANGEABLE
COVER,ACCESS
40409
6645-01-421-5507INTERCHANGEABLE
TIMER,CLEANER,ULTRA
40409
2610-01-576-4063INTERCHANGEABLE
INNER TUBE,PNEUMATIC TIRE,VEHICU
5120-01-604-4916INTERCHANGEABLE
STEP PLATE,MECHANICAL PULLER
4040-9
5995-01-700-0855INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
40409

Frequently Asked Questions

What is NSN 5365-01-334-1338?

NSN 5365-01-334-1338 is a Spacer,plate, manufactured by Fleet Readiness Center East Div Department of Navy, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-334-1338?

NSN 5365-01-334-1338 has 2 cross-referenced part numbers: 40409 (Fleet Readiness Center East Div Department of Navy), 40409 (Joint Oil Analysis Program Dba Department of Defense).

What NSN replaces 5365-01-334-1338?

There are 8 known substitutes for 5365-01-334-1338: 5961-00-112-3399, 5310-00-185-6486, 5950-00-803-2066 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40409?

Key specifications for 40409: Outside Diameter: 8.850 INCHES NOMINAL IN; Material Document and Classification: QQ-M-44 FED SPEC SINGLE MATERIAL RESPONSE; Hole Diameter: 0.375 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN; Bolt Circle Diameter: 8.100 INCHES NOMINAL IN. 8 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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