PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS21209F1-20Insert,screw Thread

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5325-00-721-7653 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-721-7653 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-721-7653. Primary manufacturer part number: MS21209F1-20.
Features
  • Insert,screw Thread — FSC 5325
  • 50 verified cross-references
  • Primary manufacturer: National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Insert,screw Thread, cataloged under National Stock Number 5325-00-721-7653, 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. This item has 50 commercial cross-references from 36 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameInsert,screw Thread
FSC / FSG5325 — No Item Name Available (FSG 53)
ManufacturersStanley Engineered Fastening Llc (CAGE 01556); Zf Industrieantriebe Witten Gmbh (CAGE D9182); Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (CAGE 06848); Hamilton Sundstrand Corporation Dba Collins Aerospace (CAGE 73030); Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAGE 00198)
Technical Specifications
ParameterValue
NSN5325-00-721-7653
Primary Part NumberMS21209F1-20
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
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5325-00-008-29243591-3CN380 INTERCHANGEABLE
Insert,screw Thread
Armstrong Precision Components Ltd
2520-00-357-5096336066 INTERCHANGEABLE
Parts Kit,valve,tra
Mitsubishi Caterpillar Forklift America, Inc
3040-00-409-4881306326 INTERCHANGEABLE
Shaft,shouldered
Telemechanics Inc
5325-00-514-27713591-3CN380 INTERCHANGEABLE
Insert,screw Thread
Stanley Engineered Fastening Llc
5905-00-651-163362-717 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Lockheed Martin Corporation Div Rms - Mitchel Field
5310-00-797-406562717 INTERCHANGEABLE
Washer,ceiling
John Deer Consumer Products Inc
3120-00-866-932210911055 INTERCHANGEABLE
Bearing,sleeve
Rbc Transport Dynamics Corp Div Rbc Transport Dynamics
4810-01-146-985562717 INTERCHANGEABLE
Valve,globe
Griswold Industries Dba Cla-Val Co
5340-01-424-63146259087 INTERCHANGEABLE
Cover,access
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
3591-3CNX380 Stanley Engineered Fastening Llc (USA)
MS21209-F1-20 Zf Industrieantriebe Witten Gmbh (DEU)
336066 Honeywell International Inc Div Aerospace-South Bend (bendix Dr) (USA)
69769-3-25 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
3007311 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN)
2JC2406H06 Westinghouse Electric Corp (USA)
2031-3-380 Stanley Engineered Fastening Llc (USA)
26J100-3L Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems (USA)
3591-3CN0380 Stanley Engineered Fastening Llc (USA)
3063-26 General Signal Corp (USA)
6259087 Zf Industrieantriebe Witten Gmbh (DEU)
TLF-3C-0380 Fairchild Fasteners Europe - Camloc Gmbh (DEU)
209F1-0380 Albany Fasteners Pawtucket Fasteners Div (USA)
10119156 Nimikkeistokeskus Ncb Finland (FIN)
3591-3CNX380 Zf Industrieantriebe Witten Gmbh (DEU)
TLF-3C-0380 Howmet Global Fastening Systems Inc. Div Tridair Products (USA)
857337 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
829922 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Us Army Research, Development and Engineering Command Armament (USA)
904376-02 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
7733423P004C Lockheed Martin Corp Naval Electronics & Surveillance Systems (USA)
Related Parts
5325-00-008-2924INTERCHANGEABLE
INSERT,SCREW THREAD
3591-3CN380
2520-00-357-5096INTERCHANGEABLE
PARTS KIT,VALVE,TRA
336066
3040-00-409-4881INTERCHANGEABLE
SHAFT,SHOULDERED
306326
5325-00-514-2771INTERCHANGEABLE
INSERT,SCREW THREAD
3591-3CN380
5905-00-651-1633INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
62-717
5310-00-797-4065INTERCHANGEABLE
WASHER,CEILING
62717
3120-00-866-9322INTERCHANGEABLE
BEARING,SLEEVE
10911055
4810-01-146-9855INTERCHANGEABLE
VALVE,GLOBE
62717
5340-01-424-6314INTERCHANGEABLE
COVER,ACCESS
6259087

Frequently Asked Questions

What is NSN 5325-00-721-7653?

NSN 5325-00-721-7653 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 5325-00-721-7653?

NSN 5325-00-721-7653 has 50 cross-referenced part numbers: 3591-3CNX380 (Stanley Engineered Fastening Llc), MS21209-F1-20 (Zf Industrieantriebe Witten Gmbh), 336066 (Honeywell International Inc Div Aerospace-South Bend (bendix Dr)), 69769-3-25 (Hamilton Sundstrand Corporation Dba Collins Aerospace), 3007311 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.) and 45 more.

What NSN replaces 5325-00-721-7653?

There are 9 known substitutes for 5325-00-721-7653: 5325-00-008-2924, 2520-00-357-5096, 3040-00-409-4881 and 6 more. Verify interchangeability with system specifications before substitution.

Is NSN 5325-00-721-7653 still in active supply?

NSN 5325-00-721-7653 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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