PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

81912-1Thumbscrew

Oeco, Llc Dba Pacific Scientific Oeco · NSN 5305-01-324-5817 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-324-5817 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-324-5817. Primary manufacturer part number: 81912-1.
Features
  • Thumbscrew — FSC 5305
  • Fastener Length: 1.105 INCHES NOMINAL IN
  • Point Style: FLAT
  • Surface Treatment: CADMIUM AND CHROMATE OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Thread Direction: RIGHT-HAND
  • Departure From Cited Document: AS MODIFIED BY THREAD LENGTH
  • Specification/standard Data: 96906-MS21316-24 GOVERNMENT STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Thumbscrew, cataloged under National Stock Number 5305-01-324-5817, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Oeco, Llc Dba Pacific Scientific Oeco. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-324-5817
Primary Part Number81912-1
Item NameThumbscrew
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerOeco, Llc Dba Pacific Scientific Oeco
StatusACTIVE
Fastener Length1.105 INCHES NOMINAL IN
Point StyleFLAT
Surface TreatmentCADMIUM AND CHROMATE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread DirectionRIGHT-HAND
Departure From Cited DocumentAS MODIFIED BY THREAD LENGTH
Specification/standard Data96906-MS21316-24 GOVERNMENT STANDARD
Thread Length0.187 INCHES NOMINAL IN
Head StyleTHUMB NO. 3
Head Height0.460 INCHES MINIMUM AND 0.480 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Width Between Flats0.400 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
Thread Quantity Per Inch24
Surface Treatment Document and ClassificationQQ-P-416,TYPE2,CLASS 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Nominal Thread Diameter0.190 INCHES IN
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-00-957-3642 INTERCHANGEABLE
Bit,screwdriver
5970-01-196-864881912-1 INTERCHANGEABLE
Insulator,plate
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
81912-1 PRIMARY Oeco, Llc Dba Pacific Scientific Oeco (USA)
Related Parts
5120-00-957-3642INTERCHANGEABLE
BIT,SCREWDRIVER
5970-01-196-8648INTERCHANGEABLE
INSULATOR,PLATE
81912-1

Frequently Asked Questions

What is NSN 5305-01-324-5817?

NSN 5305-01-324-5817 is a Thumbscrew, manufactured by Oeco, Llc Dba Pacific Scientific Oeco, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-324-5817?

NSN 5305-01-324-5817 has 1 cross-referenced part number: 81912-1 (Oeco, Llc Dba Pacific Scientific Oeco).

What NSN replaces 5305-01-324-5817?

There are 2 known substitutes for 5305-01-324-5817: 5120-00-957-3642, 5970-01-196-8648. Verify interchangeability with system specifications before substitution.

What are the specifications of 81912-1?

Key specifications for 81912-1: Fastener Length: 1.105 INCHES NOMINAL IN; Point Style: FLAT; Surface Treatment: CADMIUM AND CHROMATE OVERALL; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 17 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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