PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AES01C438A12AW9A91Screw,cap,hexagon Head

The American Society of Mechanical Engineers · NSN 5305-00-071-1787 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-071-1787 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-071-1787. Primary manufacturer part number: AES01C438A12AW9A91.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Finish: 63.0 MICROINCHES THREADS
  • Material: STEEL OVERALL
  • Thread Quantity Per Inch: 14
  • Nominal Thread Diameter: 0.438 INCHES IN
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Screw,cap,hexagon Head, cataloged under National Stock Number 5305-00-071-1787, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-071-1787
Primary Part NumberAES01C438A12AW9A91
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Thread Class2A A
Material Document and ClassificationSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface Finish63.0 MICROINCHES THREADS
MaterialSTEEL OVERALL
Thread Quantity Per Inch14
Nominal Thread Diameter0.438 INCHES IN
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Surface TreatmentZINC AND CHROMATE OVERALL
Surface Treatment Document and ClassificationASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Head StyleHEXAGON
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Width Between Flats0.612 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
Head Height0.272 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Fastener Length1.063 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Thread Length0.884 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5305-00-017-9859179859 INTERCHANGEABLE
Screw,cap,hexagon Head
Rolls-Royce Solutions America Inc
5306-00-038-1956 INTERCHANGEABLE
Bolt,machine
3020-00-118-404712720 INTERCHANGEABLE
Gear
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
3120-00-222-1190127-20 INTERCHANGEABLE
Bearing,sleeve
Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp
3455-00-272-985612720 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
6670-00-803-968080850116 INTERCHANGEABLE
Weight Set,balance
Ohaus Corporation
5950-01-142-76971856467 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation
2920-01-282-852219810 INTERCHANGEABLE
Regulator,engine Generator
Creating Technology Solutions, Llc Dba Technology Research Corp Div Technology Research Corp
2940-01-516-9552 INTERCHANGEABLE
Air Cleaner,intake
2541-01-578-6907 INTERCHANGEABLE
Slat Armor Kit
Cross-Reference Index
Part NumberManufacturer
1863HX1 Oshkosh Defense Llc (USA)
71145-86 Little Giant Crane and Shovel Inc (USA)
B1821BH044C113N American National Standards Institute Incorporated Dba American National Standards Institute (USA)
1863HX1 Oshkosh Corp (USA)
179859 Zf Industrieantriebe Witten Gmbh (DEU)
5305000711787 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
ASME B18.2.1 The American Society of Mechanical Engineers (USA)
MS90728-86 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AES01C438A12AW9A91 PRIMARY The American Society of Mechanical Engineers (USA)
12-720 Cnh Industrial America Llc Dba Cnh America (USA)
1245509 General Motors Corp Chevrolet Motor Div Special Products Dept (USA)
10082368 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5305-00-017-9859INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
179859
5306-00-038-1956INTERCHANGEABLE
BOLT,MACHINE
3020-00-118-4047INTERCHANGEABLE
GEAR
12720
3120-00-222-1190INTERCHANGEABLE
BEARING,SLEEVE
127-20
3455-00-272-9856INTERCHANGEABLE
CUTTER,MILLING,ANGLE
12720
6670-00-803-9680INTERCHANGEABLE
WEIGHT SET,BALANCE
80850116
5950-01-142-7697INTERCHANGEABLE
REACTOR
1856467
2920-01-282-8522INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
19810
2940-01-516-9552INTERCHANGEABLE
AIR CLEANER,INTAKE
2541-01-578-6907INTERCHANGEABLE
SLAT ARMOR KIT

Frequently Asked Questions

What is NSN 5305-00-071-1787?

NSN 5305-00-071-1787 is a Screw,cap,hexagon Head, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-071-1787?

NSN 5305-00-071-1787 has 12 cross-referenced part numbers: 1863HX1 (Oshkosh Defense Llc), 71145-86 (Little Giant Crane and Shovel Inc), B1821BH044C113N (American National Standards Institute Incorporated Dba American National Standards Institute), 1863HX1 (Oshkosh Corp), 179859 (Zf Industrieantriebe Witten Gmbh) and 7 more.

What NSN replaces 5305-00-071-1787?

There are 10 known substitutes for 5305-00-071-1787: 5305-00-017-9859, 5306-00-038-1956, 3020-00-118-4047 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AES01C438A12AW9A91?

Key specifications for AES01C438A12AW9A91: Thread Class: 2A A; Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Surface Finish: 63.0 MICROINCHES THREADS; Material: STEEL OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-071-1787 still in active supply?

NSN 5305-00-071-1787 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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