PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5B23Thumbscrew

The Boeing Company Div Legacy Am&m · NSN 5305-00-215-6427 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-215-6427 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-215-6427. Primary manufacturer part number: 5B23.
Features
  • Thumbscrew — FSC 5305
  • Width Between Flats: 0.828 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 32
  • Thread Direction: RIGHT-HAND
  • Material Document and Classification: QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Hole Quantity: 1
  • Nominal Thread Diameter: 0.190 INCHES IN
  • Thread Series Designator: UNF
Applications
  • Applications requiring Steel Comp 1010 Overall construction
General Description

The Thumbscrew, cataloged under National Stock Number 5305-00-215-6427, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 19 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-215-6427
Primary Part Number5B23
Item NameThumbscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusACTIVE
Width Between Flats0.828 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN
Thread Quantity Per Inch32
Thread DirectionRIGHT-HAND
Material Document and ClassificationQQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Hole Quantity1
Nominal Thread Diameter0.190 INCHES IN
Thread Series DesignatorUNF
Head Height0.422 INCHES MINIMUM AND 0.452 INCHES MAXIMUM IN
Thread Class3A A
Head StyleWING NO. 2
Hole TypeDRILLED
Fastener Length5.875 INCHES NOMINAL IN
MaterialSTEEL COMP 1010 OVERALL
Surface TreatmentCADMIUM OVERALL
Thread Length0.750 INCHES MINIMUM IN
Hole Diameter0.070 INCHES NOMINAL IN
Hole Configuration StyleWING
Point StyleCONE
Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-061-627310910 INTERCHANGEABLE
Drill,twist
Precision Twist Drill Co
6520-00-536-80505570121 INTERCHANGEABLE
Investment,dental
Henry Schein, Inc.
6520-00-596-729012652 INTERCHANGEABLE
Point,endodontic
Kerr Corporation
5136-00-889-20905136-00-889-2090 INTERCHANGEABLE
Die and Collet
General Services Administration Federal Supply Service
Cross-Reference Index
Part NumberManufacturer
5B23 PRIMARY The Boeing Company Div Legacy Am&m (USA)
01473 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
Related Parts
5133-00-061-6273INTERCHANGEABLE
DRILL,TWIST
10910
6520-00-536-8050INTERCHANGEABLE
INVESTMENT,DENTAL
5570121
6520-00-596-7290INTERCHANGEABLE
POINT,ENDODONTIC
12652
5136-00-889-2090INTERCHANGEABLE
DIE AND COLLET
5136-00-889-2090

Frequently Asked Questions

What is NSN 5305-00-215-6427?

NSN 5305-00-215-6427 is a Thumbscrew, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-215-6427?

NSN 5305-00-215-6427 has 2 cross-referenced part numbers: 5B23 (The Boeing Company Div Legacy Am&m), 01473 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).

What NSN replaces 5305-00-215-6427?

There are 4 known substitutes for 5305-00-215-6427: 5133-00-061-6273, 6520-00-536-8050, 6520-00-596-7290 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5B23?

Key specifications for 5B23: Width Between Flats: 0.828 INCHES MINIMUM AND 0.858 INCHES MAXIMUM IN; Thread Quantity Per Inch: 32; Thread Direction: RIGHT-HAND; Material Document and Classification: QQ-S-630 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-631 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-S-634 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 19 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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