PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AES14C250A00BB3L71Screw,cap,socket Head

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5305-01-657-2130 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-657-2130 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-657-2130. Primary manufacturer part number: AES14C250A00BB3L71.
Features
  • Screw,cap,socket Head — FSC 5305
  • Surface Treatment: OXIDE OVERALL
  • Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
  • Head Style: HEXAGON
  • Thread Length: 0.756 INCHES MINIMUM IN
  • Width Between Flats: 0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
  • Thread Quantity Per Inch: 20
  • Fastener Length: 1.000 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,socket Head, cataloged under National Stock Number 5305-01-657-2130, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is American National Standards Institute Incorporated Dba American National Standards Institute. Government technical data includes 15 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5305-01-657-2130
Primary Part NumberAES14C250A00BB3L71
Item NameScrew,cap,socket Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusACTIVE
Surface TreatmentOXIDE OVERALL
Head Height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Head StyleHEXAGON
Thread Length0.756 INCHES MINIMUM IN
Width Between Flats0.365 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
Thread Quantity Per Inch20
Fastener Length1.000 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Thread Class2A A
Nominal Thread Diameter0.250 INCHES IN
Internal Drive StyleHEXAGON
Width Across Flats0.188 INCHES NOMINAL IN
ColorBLACK OVERALL
MaterialSTEEL OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5305-01-507-5301AES14C250A00BB3L71 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
94967A622 Mcmaster-Carr Supply Co (USA)
B18.24-2004 The American Society of Mechanical Engineers (USA)
AES14C250A00BB3L71 PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
5305-01-507-5301INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES14C250A00BB3L71

Frequently Asked Questions

What is NSN 5305-01-657-2130?

NSN 5305-01-657-2130 is a Screw,cap,socket Head, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-657-2130?

NSN 5305-01-657-2130 has 3 cross-referenced part numbers: 94967A622 (Mcmaster-Carr Supply Co), B18.24-2004 (The American Society of Mechanical Engineers), AES14C250A00BB3L71 (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 5305-01-657-2130?

There is 1 known substitute for 5305-01-657-2130: 5305-01-507-5301. Verify interchangeability with system specifications before substitution.

What are the specifications of AES14C250A00BB3L71?

Key specifications for AES14C250A00BB3L71: Surface Treatment: OXIDE OVERALL; End Item Identification: 4940-01-601-1930; Head Height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN; Head Style: HEXAGON. 18 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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