PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

38271Screw,machine

International Business Machines Corporation Dba IBM · NSN 5305-00-843-8278 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-843-8278 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-843-8278. Primary manufacturer part number: 38271.
Features
  • Screw,machine — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Head Height: 0.081 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
  • Thread Length: 0.138 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 40
  • Minimum Tensile Strength: 60000 POUNDS PER SQUARE INCH LBS
  • Fastener Length: 0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
  • Screw Surface Treatment: CADMIUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Screw,machine, cataloged under National Stock Number 5305-00-843-8278, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is International Business Machines Corporation Dba IBM. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5305-00-843-8278
Primary Part Number38271
Item NameScrew,machine
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerInternational Business Machines Corporation Dba IBM
StatusACTIVE
Thread DirectionRIGHT-HAND
Head Height0.081 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
Thread Length0.138 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Thread Quantity Per Inch40
Minimum Tensile Strength60000 POUNDS PER SQUARE INCH LBS
Fastener Length0.156 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Screw Surface TreatmentCADMIUM
Thread Class2A A
Screw MaterialSTEEL OR STEEL COMP 1010
Screw Surface Treatment Document and ClassificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Screw Material Document and ClassificationQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
Internal Drive StyleCROSS RECESS TYPE 1
Nominal Thread Diameter0.125 INCHES IN
Head Diameter0.187 INCHES MINIMUM AND 0.205 INCHES MAXIMUM IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleFILLISTER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5895-00-347-465338271 INTERCHANGEABLE
Synchronizer,electrical
L3harris Technologies, Inc Div Space & Airborne Systems
5305-00-444-0851 INTERCHANGEABLE
Screw,machine
5305-00-579-1267 INTERCHANGEABLE
Screw,machine
4310-00-604-383618313 INTERCHANGEABLE
Connecting Rod,piston
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division
Cross-Reference Index
Part NumberManufacturer
38271 International Business Machines Corporation Dba IBM (USA)
AN500-5-3 Aeronautical Standards Group Dept of Navy and Air Force (USA)
38271 International Business Machines Corp Parts Order Center Dept E - 54 (USA)
38271 International Business Machines Corp Endicott Development Lab (USA)
Related Parts
5895-00-347-4653INTERCHANGEABLE
SYNCHRONIZER,ELECTRICAL
38271
5305-00-444-0851INTERCHANGEABLE
SCREW,MACHINE
5305-00-579-1267INTERCHANGEABLE
SCREW,MACHINE
4310-00-604-3836INTERCHANGEABLE
CONNECTING ROD,PISTON
18313

Frequently Asked Questions

What is NSN 5305-00-843-8278?

NSN 5305-00-843-8278 is a Screw,machine, manufactured by International Business Machines Corporation Dba IBM, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-00-843-8278?

NSN 5305-00-843-8278 has 4 cross-referenced part numbers: 38271 (International Business Machines Corporation Dba IBM), AN500-5-3 (Aeronautical Standards Group Dept of Navy and Air Force), 38271 (International Business Machines Corp Parts Order Center Dept E - 54), 38271 (International Business Machines Corp Endicott Development Lab).

What NSN replaces 5305-00-843-8278?

There are 4 known substitutes for 5305-00-843-8278: 5895-00-347-4653, 5305-00-444-0851, 5305-00-579-1267 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 38271?

Key specifications for 38271: Thread Direction: RIGHT-HAND; Head Height: 0.081 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN; Thread Length: 0.138 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN; Thread Quantity Per Inch: 40. 16 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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