PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

39905Screw,externally Relieved Body

Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems · NSN 5305-00-983-9407 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-983-9407 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-983-9407. Primary manufacturer part number: 39905.
Features
  • Screw,externally Relieved Body — FSC 5305
  • Thread Length: 0.180 INCHES MINIMUM IN
  • Nominal Thread Diameter: 0.138 INCHES IN
  • Surface Treatment: PASSIVATE OVERALL
  • Thread Quantity Per Inch: 32
  • Fastener Length: 0.540 INCHES NOMINAL IN
  • Thread Direction: RIGHT-HAND
  • Internal Drive Style: CROSS RECESS TYPE 1
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 303 or Steel Comp 303SE Overall construction
General Description

The Screw,externally Relieved Body, cataloged under National Stock Number 5305-00-983-9407, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN5305-00-983-9407
Primary Part Number39905
Item NameScrew,externally Relieved Body
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems
StatusACTIVE
Thread Length0.180 INCHES MINIMUM IN
Nominal Thread Diameter0.138 INCHES IN
Surface TreatmentPASSIVATE OVERALL
Thread Quantity Per Inch32
Fastener Length0.540 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Internal Drive StyleCROSS RECESS TYPE 1
Thread Class2A A
Externally Relieved Body Diameter Quantity1
Head StyleFILLISTER
MaterialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
Distance From Largest Bearing Surface of Head to End of First Diameter0.280 INCHES NOMINAL IN
Head Height0.118 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN
First Diameter From Head0.094 INCHES NOMINAL IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Material Document and ClassificationASTM A582 ASSN STD ALL MATERIAL RESPONSES OVERALL
Head Diameter0.208 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
1620-00-821-448639905 INTERCHANGEABLE
End,return Port,val
Parker-Hannifin Corporation Dba Control Systems Division
5950-01-293-4889PE5259 INTERCHANGEABLE
Transformer,power
Pulse Engineering Inc
5305-01-623-839639905 INTERCHANGEABLE
Screw,cap,socket Head
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
39905 PRIMARY Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
39905 Lockheed Corp Lockheed Electronics Co Inc (USA)
Related Parts
1620-00-821-4486INTERCHANGEABLE
END,RETURN PORT,VAL
39905
5950-01-293-4889INTERCHANGEABLE
TRANSFORMER,POWER
PE5259
5305-01-623-8396INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
39905

Frequently Asked Questions

What is NSN 5305-00-983-9407?

NSN 5305-00-983-9407 is a Screw,externally Relieved Body, manufactured by Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-983-9407?

NSN 5305-00-983-9407 has 2 cross-referenced part numbers: 39905 (Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems), 39905 (Lockheed Corp Lockheed Electronics Co Inc).

What NSN replaces 5305-00-983-9407?

There are 3 known substitutes for 5305-00-983-9407: 1620-00-821-4486, 5950-01-293-4889, 5305-01-623-8396. Verify interchangeability with system specifications before substitution.

What are the specifications of 39905?

Key specifications for 39905: Thread Length: 0.180 INCHES MINIMUM IN; Nominal Thread Diameter: 0.138 INCHES IN; Surface Treatment: PASSIVATE OVERALL; Thread Quantity Per Inch: 32. 17 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com