PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9A2120Cap,dust,propeller Shaft

Napco International Llc Dba Napco International Inc · NSN 2520-00-734-8101 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-734-8101 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-734-8101. Primary manufacturer part number: 9A2120.
Features
  • Cap,dust,propeller Shaft — FSC 2520
  • Style Designator: SCREW ON
  • Thread Size: 2-3/4-24
  • Plain Hole Diameter: 2.518 INCHES NOMINAL IN
  • Inside Diameter: 2.700 INCHES NOMINAL IN
  • Outside Diameter: 2.843 INCHES NOMINAL IN
  • Thread Length: 0.625 INCHES NOMINAL IN
  • Material: STEEL
Applications
  • Applications requiring Steel construction
General Description

The Cap,dust,propeller Shaft, cataloged under National Stock Number 2520-00-734-8101, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-734-8101
Primary Part Number9A2120
Item NameCap,dust,propeller Shaft
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Style DesignatorSCREW ON
Thread Size2-3/4-24
Plain Hole Diameter2.518 INCHES NOMINAL IN
Inside Diameter2.700 INCHES NOMINAL IN
Outside Diameter2.843 INCHES NOMINAL IN
Thread Length0.625 INCHES NOMINAL IN
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2520-00-353-5637K6-14-29 INTERCHANGEABLE
Cap,dust
Dana Corp Spicer Transmission Div
5306-00-531-8940312264 INTERCHANGEABLE
Bolt,machine
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
5340-01-214-7306139894 INTERCHANGEABLE
Plunger,detent
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
K6-14-29 Paccar Government Group Co Yarrow Bay Office Pk (USA)
139894 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
9A2120 PRIMARY Napco International Llc Dba Napco International Inc (USA)
396304 White Motor Corp (USA)
7348101 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
396304 Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA)
9BXS4 Mack Trucks Inc Parts Opn (USA)
811P2 Diamond Reo Truck Co (USA)
9BX54 Mack Trucks Inc Parts Opn (USA)
17186J Diamond Reo Truck Co (USA)
312264 Daf Trucks N.v. (NLD)
Related Parts
2520-00-353-5637INTERCHANGEABLE
CAP,DUST
K6-14-29
5306-00-531-8940INTERCHANGEABLE
BOLT,MACHINE
312264
5340-01-214-7306INTERCHANGEABLE
PLUNGER,DETENT
139894

Frequently Asked Questions

What is NSN 2520-00-734-8101?

NSN 2520-00-734-8101 is a Cap,dust,propeller Shaft, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-734-8101?

NSN 2520-00-734-8101 has 11 cross-referenced part numbers: K6-14-29 (Paccar Government Group Co Yarrow Bay Office Pk), 139894 (Brockway Motor Trucks Div of Mack Trucks Inc), 9A2120 (Napco International Llc Dba Napco International Inc), 396304 (White Motor Corp), 7348101 (U S Army Tank Automotive Command Amsta-Im-Mm) and 6 more.

What NSN replaces 2520-00-734-8101?

There are 3 known substitutes for 2520-00-734-8101: 2520-00-353-5637, 5306-00-531-8940, 5340-01-214-7306. Verify interchangeability with system specifications before substitution.

What are the specifications of 9A2120?

Key specifications for 9A2120: End Item Identification: 2320-01-047-8770; Style Designator: SCREW ON; Thread Size: 2-3/4-24; Plain Hole Diameter: 2.518 INCHES NOMINAL IN. 10 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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