PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AES01C375750AW9A9BScrew,cap,hexagon Head

The American Society of Mechanical Engineers · NSN 5305-01-390-5203 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-01-390-5203 — this item is cataloged by the U.S. Government under National Stock Number 5305-01-390-5203. Primary manufacturer part number: AES01C375750AW9A9B.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Length: 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
  • Hole Quantity: 1
  • Thread Direction: RIGHT-HAND
  • Color: YELLOW OR BRONZE OR OLIVE DRAB OVERALL
  • Material Document and Classification: SAE J429 GR8 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A354 ASSN STD 2ND MATERIAL RESPONSE OVERALL
  • Hole Configuration Style: HEXAGON FLATS
  • Hardness Rating: 33.0 ROCKWELL C MINIMUM OVERALL
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel or Steel Uns K04100 Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-01-390-5203, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5305-01-390-5203
Primary Part NumberAES01C375750AW9A9B
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Thread Length0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
Hole Quantity1
Thread DirectionRIGHT-HAND
ColorYELLOW OR BRONZE OR OLIVE DRAB OVERALL
Material Document and ClassificationSAE J429 GR8 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A354 ASSN STD 2ND MATERIAL RESPONSE OVERALL
Hole Configuration StyleHEXAGON FLATS
Hardness Rating33.0 ROCKWELL C MINIMUM OVERALL
Surface Treatment Document and ClassificationASTM B633 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Surface TreatmentZINC AND CHROMATE OVERALL
Head Height0.223 INCHES MINIMUM AND 0.246 INCHES MAXIMUM IN
Thread Quantity Per Inch16
Hole TypeDRILLED
Nominal Thread Diameter0.375 INCHES IN
MaterialSTEEL OR STEEL UNS K04100 OVERALL
Thread Class2A A
Fastener Length0.750 INCHES NOMINAL IN
Hole Diameter0.062 INCHES NOMINAL IN
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Features ProvidedFINISHED HEAD
Head StyleHEXAGON
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5305-00-051-4076B1821BH031F100N INTERCHANGEABLE
Screw,cap,hexagon Head
American National Standards Institute Incorporated Dba American National Standards Institute
5305-00-725-2317AES01C375A50AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
5305-00-726-2572AES01F625F00AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
5305-00-904-4004AES01F875B00AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
Cross-Reference Index
Part NumberManufacturer
ASEM B18.2.1 The American Society of Mechanical Engineers (USA)
AES01C375750AW9A9B PRIMARY The American Society of Mechanical Engineers (USA)
B1821BH038C075C American National Standards Institute Incorporated Dba American National Standards Institute (USA)
Related Parts
5305-00-051-4076INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
B1821BH031F100N
5305-00-725-2317INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C375A50AW9A91
5305-00-726-2572INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01F625F00AW9A91
5305-00-904-4004INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01F875B00AW9A91

Frequently Asked Questions

What is NSN 5305-01-390-5203?

NSN 5305-01-390-5203 is a Screw,cap,hexagon Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305 (No Item Name Available). Status: active.

What are the part numbers for NSN 5305-01-390-5203?

NSN 5305-01-390-5203 has 3 cross-referenced part numbers: ASEM B18.2.1 (The American Society of Mechanical Engineers), AES01C375750AW9A9B (The American Society of Mechanical Engineers), B1821BH038C075C (American National Standards Institute Incorporated Dba American National Standards Institute).

What NSN replaces 5305-01-390-5203?

There are 4 known substitutes for 5305-01-390-5203: 5305-00-051-4076, 5305-00-725-2317, 5305-00-726-2572 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AES01C375750AW9A9B?

Key specifications for AES01C375750AW9A9B: Thread Length: 0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN; Hole Quantity: 1; Thread Direction: RIGHT-HAND; Color: YELLOW OR BRONZE OR OLIVE DRAB OVERALL. 21 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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