PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99831Screw,machine

Bell and Howell Phillipsburg Co Corporate Offices · NSN 5305-00-286-4021 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-286-4021 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-286-4021. Primary manufacturer part number: 99831.
Features
  • Screw,machine — FSC 5305
  • Internal Drive Style: CROSS RECESS TYPE II
  • Screw Material: STEEL CORROSION RESISTING
  • Head Diameter: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
  • Head Height: 0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
  • Thread Series Designator: UNF
  • Head Style: BINDING
  • Thread Length: 0.188 INCHES MINIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-286-4021, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Bell and Howell Phillipsburg Co Corporate Offices. Government technical data includes 15 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-00-286-4021
Primary Part Number99831
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerBell and Howell Phillipsburg Co Corporate Offices
StatusACTIVE
Internal Drive StyleCROSS RECESS TYPE II
Screw MaterialSTEEL CORROSION RESISTING
Head Diameter0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN
Head Height0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Head StyleBINDING
Thread Length0.188 INCHES MINIMUM IN
Screw Material Document and ClassificationMIL-P-12011 MIL SPEC SINGLE MATERIAL RESPONSE
Nominal Thread Diameter0.086 INCHES IN
Screw Surface TreatmentPASSIVATE
Thread DirectionRIGHT-HAND
Thread Class2A A
Screw Surface Treatment Document and ClassificationMIL-P-12011 MIL SPEC SINGLE TREATMENT RESPONSE
Fastener Length0.188 INCHES NOMINAL IN
Thread Quantity Per Inch64
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-01-128-1260 INTERCHANGEABLE
Bit,screwdriver
Cross-Reference Index
Part NumberManufacturer
99831 Bell and Howell Phillipsburg Co Corporate Offices (USA)
Related Parts
5120-01-128-1260INTERCHANGEABLE
BIT,SCREWDRIVER

Frequently Asked Questions

What is NSN 5305-00-286-4021?

NSN 5305-00-286-4021 is a Screw,machine, manufactured by Bell and Howell Phillipsburg Co Corporate Offices, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-286-4021?

NSN 5305-00-286-4021 has 1 cross-referenced part number: 99831 (Bell and Howell Phillipsburg Co Corporate Offices).

What NSN replaces 5305-00-286-4021?

There is 1 known substitute for 5305-00-286-4021: 5120-01-128-1260. Verify interchangeability with system specifications before substitution.

What are the specifications of 99831?

Key specifications for 99831: Internal Drive Style: CROSS RECESS TYPE II; Screw Material: STEEL CORROSION RESISTING; Head Diameter: 0.171 INCHES MINIMUM AND 0.181 INCHES MAXIMUM IN; Head Height: 0.048 INCHES MINIMUM AND 0.054 INCHES MAXIMUM IN. 15 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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