PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21209F6-20Insert,screw Thread

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5325-00-678-3311 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-678-3311 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-678-3311. Primary manufacturer part number: MS21209F6-20.
Features
  • Insert,screw Thread — FSC 5325
  • Surface Treatment: PASSIVATE OVERALL
  • Style Designator: COIL
  • Thread Direction: RIGHT-HAND
  • Material: STEEL COMP 302 OR STEEL COMP 304 OVERALL
  • Material Document and Classification: AISI/SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Length: 0.750 INCHES NOMINAL IN
  • Insert Size: 0.448 IN.MIN,0.468 IN.MAX IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 302 or Steel Comp 304 Overall construction
General Description

The Insert,screw Thread, cataloged under National Stock Number 5325-00-678-3311, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-678-3311
Primary Part NumberMS21209F6-20
Item NameInsert,screw Thread
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusCANCELLED
Surface TreatmentPASSIVATE OVERALL
Style DesignatorCOIL
Thread DirectionRIGHT-HAND
MaterialSTEEL COMP 302 OR STEEL COMP 304 OVERALL
Material Document and ClassificationAISI/SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Length0.750 INCHES NOMINAL IN
Insert Size0.448 IN.MIN,0.468 IN.MAX IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5325-00-558-8826MS21209C0620 INTERCHANGEABLE
Insert,screw Thread
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
MS2120F6-20 Madison Aerospace, Inc. Dba Madison Aerospace Inc (USA)
MS21209F6-20 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
209F6-0750 Albany Fasteners Pawtucket Fasteners Div (USA)
3591-6CNX3-4 New Haven Mfg Corp (USA)
NASM21209 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
5340006783311 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
0740702 General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE)
3591-6CNX0-750 New Haven Mfg Corp (USA)
MS21209F6-20 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5325PL0963394 Jednolity Indeks Materialowy - Uniform Material Index (POL)
3591-6CN750 Stanley Engineered Fastening Llc (USA)
3591-6CNX750 Stanley Engineered Fastening Llc (USA)
8352634 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
MS21209F6-20 Zf Industrieantriebe Witten Gmbh (DEU)
69679-6-48 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
Related Parts
5325-00-558-8826INTERCHANGEABLE
INSERT,SCREW THREAD
MS21209C0620

Frequently Asked Questions

What is NSN 5325-00-678-3311?

NSN 5325-00-678-3311 is a Insert,screw Thread, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-678-3311?

NSN 5325-00-678-3311 has 15 cross-referenced part numbers: MS2120F6-20 (Madison Aerospace, Inc. Dba Madison Aerospace Inc), MS21209F6-20 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 209F6-0750 (Albany Fasteners Pawtucket Fasteners Div), 3591-6CNX3-4 (New Haven Mfg Corp), NASM21209 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use) and 10 more.

What NSN replaces 5325-00-678-3311?

There is 1 known substitute for 5325-00-678-3311: 5325-00-558-8826. Verify interchangeability with system specifications before substitution.

What are the specifications of MS21209F6-20?

Key specifications for MS21209F6-20: Surface Treatment: PASSIVATE OVERALL; Style Designator: COIL; Thread Direction: RIGHT-HAND; Material: STEEL COMP 302 OR STEEL COMP 304 OVERALL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-678-3311 still in active supply?

NSN 5325-00-678-3311 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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