PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8X321Screw,machine

Kenworth Truck Co a Div of Paccar Inc · NSN 5305-00-206-7876 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-206-7876 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-206-7876. Primary manufacturer part number: 8X321.
Features
  • Screw,machine — FSC 5305
  • Thread Series Designator: UNF
  • Head Style: ROUND
  • Thread Class: 2A A
  • Thread Quantity Per Inch: 32
  • Screw Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE
  • Fastener Length: 0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
  • Internal Drive Style: SLOT
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-206-7876, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kenworth Truck Co a Div of Paccar Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 17 commercial cross-references from 14 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-206-7876
Primary Part Number8X321
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerKenworth Truck Co a Div of Paccar Inc
StatusCANCELLED
Thread Series DesignatorUNF
Head StyleROUND
Thread Class2A A
Thread Quantity Per Inch32
Screw Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE
Fastener Length0.281 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Internal Drive StyleSLOT
Head Diameter0.334 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM OR ZINC
Screw MaterialSTEEL COMP 1010 OR STEEL COMP 1020
Head Height0.123 INCHES MINIMUM AND 0.137 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Length0.250 INCHES NOMINAL IN
Nominal Thread Diameter0.190 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5331-00-162-5963F37030-258 INTERCHANGEABLE
O-Ring
Funk Mfg Co Sub of Deere and Co
5307-00-468-0128390013PC481 INTERCHANGEABLE
Stud,plain
Naval Ship Systems Command
5310-00-702-503220481 INTERCHANGEABLE
Washer,flat
Ashcroft Inc Dba Heise
5930-00-761-6781393S21P INTERCHANGEABLE
Switch,rotary
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5310-00-815-216710034398-3 INTERCHANGEABLE
Washer,flat
Us Army Aviation and Missile Command
5975-01-185-3652206081-D10180 INTERCHANGEABLE
Conduit Assembly,metal,flexible
Dcx-Chol Enterprises, Inc.
5930-01-264-973320481 INTERCHANGEABLE
Switch,toggle
Mark Industries
5855-01-299-7777M16-A1/A2 INTERCHANGEABLE
Mount,viewer
Atlantic Research Marketing Systems, Inc. Dba Atlantic Research Marketing Systems Inc
4820-01-442-8535121540 INTERCHANGEABLE
Piston,valve
Aerco International, Inc. Dba Aerco International Inc
5325-01-524-327720481 INTERCHANGEABLE
Grommet,metallic
Silver King Refrigeration Inc.
Cross-Reference Index
Part NumberManufacturer
8X321 Kenworth Truck Co a Div of Paccar Inc (USA)
BB8021 Diamond Reo Truck Co (USA)
121540 Us Army Aviation and Missile Command (USA)
FFS92TYPE1STYLE1S Federal Specifications Promulgated by General Services Administration Washington DC (USA)
121540 General Motors Llc Dba General Motors Llc (USA)
27063S7 Ford Motor Company (USA)
121540 General Motors Corp Delco Remy Div (USA)
8X321 Paccar Government Group Co Yarrow Bay Office Pk (USA)
20481 Pressed Metals of America Inc (USA)
121540 General Motors Corp (USA)
121540 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
8X321 Diamond Reo Truck Co (USA)
8X321 Sasco Inc Canadian Div
736 Sasco Inc Canadian Div
121540 Borgwarner Pds (anderson), L.l.c. (USA)
27063S7 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
121540 Diamond Reo Truck Co (USA)
Related Parts
5331-00-162-5963INTERCHANGEABLE
O-RING
F37030-258
5307-00-468-0128INTERCHANGEABLE
STUD,PLAIN
390013PC481
5310-00-702-5032INTERCHANGEABLE
WASHER,FLAT
20481
5930-00-761-6781INTERCHANGEABLE
SWITCH,ROTARY
393S21P
5310-00-815-2167INTERCHANGEABLE
WASHER,FLAT
10034398-3
5975-01-185-3652INTERCHANGEABLE
CONDUIT ASSEMBLY,METAL,FLEXIBLE
206081-D10180
5930-01-264-9733INTERCHANGEABLE
SWITCH,TOGGLE
20481
5855-01-299-7777INTERCHANGEABLE
MOUNT,VIEWER
M16-A1/A2
4820-01-442-8535INTERCHANGEABLE
PISTON,VALVE
121540
5325-01-524-3277INTERCHANGEABLE
GROMMET,METALLIC
20481

Frequently Asked Questions

What is NSN 5305-00-206-7876?

NSN 5305-00-206-7876 is a Screw,machine, manufactured by Kenworth Truck Co a Div of Paccar Inc, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-206-7876?

NSN 5305-00-206-7876 has 17 cross-referenced part numbers: 8X321 (Kenworth Truck Co a Div of Paccar Inc), BB8021 (Diamond Reo Truck Co), 121540 (Us Army Aviation and Missile Command), FFS92TYPE1STYLE1S (Federal Specifications Promulgated by General Services Administration Washington DC), 121540 (General Motors Llc Dba General Motors Llc) and 12 more.

What NSN replaces 5305-00-206-7876?

There are 10 known substitutes for 5305-00-206-7876: 5331-00-162-5963, 5307-00-468-0128, 5310-00-702-5032 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8X321?

Key specifications for 8X321: Thread Series Designator: UNF; Head Style: ROUND; Thread Class: 2A A; Thread Quantity Per Inch: 32. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-206-7876 still in active supply?

NSN 5305-00-206-7876 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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