PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

95021Screw,cap,hexagon Head

Fastenal Company Div Stct · NSN 5305-01-664-8348 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-664-8348 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-664-8348. Primary manufacturer part number: 95021.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Nominal Thread Diameter: 0.25 INCHES IN
  • Thread Length: 0.750 INCHES NOMINAL IN
  • Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Fastener Length: 4.500 INCHES NOMINAL IN
  • Thread Class: 2A A
  • Thread Quantity Per Inch: 20
  • Chamfer Angle: 15.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel and Steel Corrosion Resisting Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-664-8348, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fastenal Company Div Stct. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-664-8348
Primary Part Number95021
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerFastenal Company Div Stct
StatusACTIVE
Nominal Thread Diameter0.25 INCHES IN
Thread Length0.750 INCHES NOMINAL IN
Width Between Flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Fastener Length4.500 INCHES NOMINAL IN
Thread Class2A A
Thread Quantity Per Inch20
Chamfer Angle15.0 DEGREES MINIMUM AND 30.0 DEGREES MAXIMUM
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleHEXAGON
Thread DirectionRIGHT-HAND
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Surface TreatmentZINC OVERALL
Surface Treatment Document and ClassificationASTM F 1941 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Material Document and ClassificationSAE J995 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL AND STEEL CORROSION RESISTING OVERALL
ColorYELLOW OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
1620-00-344-050395021 INTERCHANGEABLE
Fitting,main Landin
Northrop Grumman Systems Corporation
4240-01-022-154195021 INTERCHANGEABLE
Mask,air Line
Mine Safety Appliances Company
6620-01-395-2960EC376 INTERCHANGEABLE
Gage,pressure,dial Indicating
Everllence Usa Inc.
4730-01-478-4687LSCP270046-13 INTERCHANGEABLE
Plug,tube Fitting,threaded
General Dynamics Land Systems Inc.
6532-01-626-066095021 INTERCHANGEABLE
Gown,operating,surgical
Kimberly Clark
Cross-Reference Index
Part NumberManufacturer
050-000030-017 Neeltran, Inc. (USA)
95021 PRIMARY Fastenal Company Div Stct (USA)
95021 PRIMARY Fastenal Company Dba Fastenal Co (USA)
Related Parts
1620-00-344-0503INTERCHANGEABLE
FITTING,MAIN LANDIN
95021
4240-01-022-1541INTERCHANGEABLE
MASK,AIR LINE
95021
6620-01-395-2960INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
EC376
4730-01-478-4687INTERCHANGEABLE
PLUG,TUBE FITTING,THREADED
LSCP270046-13
6532-01-626-0660INTERCHANGEABLE
GOWN,OPERATING,SURGICAL
95021

Frequently Asked Questions

What is NSN 5305-01-664-8348?

NSN 5305-01-664-8348 is a Screw,cap,hexagon Head, manufactured by Fastenal Company Div Stct, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-664-8348?

NSN 5305-01-664-8348 has 3 cross-referenced part numbers: 050-000030-017 (Neeltran, Inc.), 95021 (Fastenal Company Div Stct), 95021 (Fastenal Company Dba Fastenal Co).

What NSN replaces 5305-01-664-8348?

There are 5 known substitutes for 5305-01-664-8348: 1620-00-344-0503, 4240-01-022-1541, 6620-01-395-2960 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 95021?

Key specifications for 95021: Nominal Thread Diameter: 0.25 INCHES IN; Thread Length: 0.750 INCHES NOMINAL IN; Width Between Flats: 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN; Fastener Length: 4.500 INCHES NOMINAL IN. 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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