PartsTable TECHNICAL DATA SHEET
AUGUST 2026Technical Data Sheet

4M49A4DM12P2Spacer,plate

The Boeing Company Div Defense · NSN 5365-01-521-1782 · FSC 5365 · No Item Name Available
Verified by PartsTable
NSN 5365-01-521-1782 — this item is cataloged by the U.S. Government under National Stock Number 5365-01-521-1782. Primary manufacturer part number: 4M49A4DM12P2.
Features
  • Spacer,plate — FSC 5365
  • Material Document and Classification: 250/5 FED SPEC SINGLE MATERIAL RESPONSE
  • Bolt Hole Quantity: 2
  • Style Designator: NON-CIRCULAR W/SQUARE CORNERS
  • Surface Treatment: PRIMER
  • Bolt Hole Centerline to Nearest Edge Distance: 0.258 INCHES NOMINAL IN
  • Material: ALUMINUM ALLOY 2024
  • Outside Edge to Bolt Hole Center Distance Along Length: 0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Spacer,plate, cataloged under National Stock Number 5365-01-521-1782, is classified within Federal Supply Class 5365 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5365-01-521-1782
Primary Part Number4M49A4DM12P2
Item NameSpacer,plate
FSC / FSG5365 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Material Document and Classification250/5 FED SPEC SINGLE MATERIAL RESPONSE
Bolt Hole Quantity2
Style DesignatorNON-CIRCULAR W/SQUARE CORNERS
Surface TreatmentPRIMER
Bolt Hole Centerline to Nearest Edge Distance0.258 INCHES NOMINAL IN
MaterialALUMINUM ALLOY 2024
Outside Edge to Bolt Hole Center Distance Along Length0.310 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
Surface Treatment Document and Classification85582 MIL SPEC SINGLE TREATMENT RESPONSE
Overall Thickness0.063 INCHES NOMINAL IN
Center to Center Distance Between Bolt Holes Along Length1.500 INCHES NOMINAL IN
Hole Diameter0.356 INCHES MINIMUM AND 0.366 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5365-01-521-22324M49A4DM14P2 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
5365-01-521-22664M49A4DL8P7 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
5365-01-536-62814M49A4DL13P3 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
5365-01-564-39854M49A3D6P4 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
5365-01-564-41594M49A3DL6P4 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
5365-01-564-41704M49A3DM8P3 INTERCHANGEABLE
Spacer,plate
The Boeing Company Div Defense
Cross-Reference Index
Part NumberManufacturer
4M49A4DM12P2 Stroco Manufacturing, Inc. Dba Stroco Manufacturing Inc (USA)
4M49A4DM12P2 PRIMARY The Boeing Company Div Defense (USA)
10341568 Nimikkeistokeskus Ncb Finland (FIN)
4M49 The Boeing Company Div Defense (USA)
Related Parts
5365-01-521-2232INTERCHANGEABLE
SPACER,PLATE
4M49A4DM14P2
5365-01-521-2266INTERCHANGEABLE
SPACER,PLATE
4M49A4DL8P7
5365-01-536-6281INTERCHANGEABLE
SPACER,PLATE
4M49A4DL13P3
5365-01-564-3985INTERCHANGEABLE
SPACER,PLATE
4M49A3D6P4
5365-01-564-4159INTERCHANGEABLE
SPACER,PLATE
4M49A3DL6P4
5365-01-564-4170INTERCHANGEABLE
SPACER,PLATE
4M49A3DM8P3

Frequently Asked Questions

What is NSN 5365-01-521-1782?

NSN 5365-01-521-1782 is a Spacer,plate, manufactured by The Boeing Company Div Defense, classified under FSC 5365 (No Item Name Available). Status: active.

What are the part numbers for NSN 5365-01-521-1782?

NSN 5365-01-521-1782 has 4 cross-referenced part numbers: 4M49A4DM12P2 (Stroco Manufacturing, Inc. Dba Stroco Manufacturing Inc), 4M49A4DM12P2 (The Boeing Company Div Defense), 10341568 (Nimikkeistokeskus Ncb Finland), 4M49 (The Boeing Company Div Defense).

What NSN replaces 5365-01-521-1782?

There are 6 known substitutes for 5365-01-521-1782: 5365-01-521-2232, 5365-01-521-2266, 5365-01-536-6281 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4M49A4DM12P2?

Key specifications for 4M49A4DM12P2: Special Features: UNPRIMED ALUMINUM ALLOY AND CRES SHIMS HAVE BEEN SUPERCEDED BY PRIMED SHIMS. UNPRIMED SHIMS MAY BE REWORKED BY PRIMING IN ACCORDANCE WITH PARA 3.3.2 OR 3.3.3. 48 INCH STOCK LENGTHS ARE STANDARD. IN; Part Name Assigned by Controlling Agency: INAVY: SPACER, PLATE; Material Document and Classification: 250/5 FED SPEC SINGLE MATERIAL RESPONSE; Overall Length: 2.260 INCHES NOMINAL IN. 16 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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