PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AES01C250875AW9A91Screw,cap,hexagon Head

The American Society of Mechanical Engineers · NSN 5305-00-071-2505 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-071-2505 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-071-2505. Primary manufacturer part number: AES01C250875AW9A91.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Direction: RIGHT-HAND
  • Thread Quantity Per Inch: 20
  • Nominal Thread Diameter: 0.250 INCHES IN
  • Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Surface Finish: 63.0 MICROINCHES THREADS
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 5305-00-071-2505, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 21 commercial cross-references from 17 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-071-2505
Primary Part NumberAES01C250875AW9A91
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Thread DirectionRIGHT-HAND
Thread Quantity Per Inch20
Nominal Thread Diameter0.250 INCHES IN
Material Document and ClassificationSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL OVERALL
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
Surface Finish63.0 MICROINCHES THREADS
Thread Length0.719 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Head Height0.150 INCHES MINIMUM AND 0.163 INCHES MAXIMUM IN
Fastener Length0.844 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
Surface TreatmentZINC AND CHROMATE OVERALL
Surface Treatment Document and ClassificationASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Head StyleHEXAGON
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Width Between Flats0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5305-00-225-384092756 INTERCHANGEABLE
Screw,cap,hexagon Head
Briggs and Stratton Corp
4320-00-413-3517 INTERCHANGEABLE
Lever,clutch,pump
5305-01-582-62109S57129A INTERCHANGEABLE
Screw,cap,hexagon Head
Modine Manufacturing Company Div Modine Jeff City
Cross-Reference Index
Part NumberManufacturer
6CA262 Oshkosh Defense Llc (USA)
B1821BH025C088N American National Standards Institute Incorporated Dba American National Standards Institute (USA)
MS35305-7 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
22490R1 Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA)
S210NA38CAD16354BNCG1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
5305PL1368332 Jednolity Indeks Materialowy - Uniform Material Index (POL)
X-5-3 Kohler Co Engine Plant Div (USA)
S4M101 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
22490R1 Rtx Corporation Div Pratt & Whitney (USA)
S4M101 Renk America Llc Div Renk America (USA)
MS90725-7 Zf Industrieantriebe Witten Gmbh (DEU)
856732-00 Defense Reduction Agency (USA)
MS90728-7 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
23036269-007 Rolls-Royce Corporation (USA)
6057250 Zf Industrieantriebe Witten Gmbh (DEU)
AES01C250875AW9A91 PRIMARY The American Society of Mechanical Engineers (USA)
6CA262 Oshkosh Corp (USA)
456720119001 Ncb Hungary (honvedsegi Egyseges Termekkod) (HUN)
5305PL0656682 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10082377 Nimikkeistokeskus Ncb Finland (FIN)
Related Parts
5305-00-225-3840INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
92756
4320-00-413-3517INTERCHANGEABLE
LEVER,CLUTCH,PUMP
5305-01-582-6210INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
9S57129A

Frequently Asked Questions

What is NSN 5305-00-071-2505?

NSN 5305-00-071-2505 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 5305-00-071-2505?

NSN 5305-00-071-2505 has 21 cross-referenced part numbers: 6CA262 (Oshkosh Defense Llc), B1821BH025C088N (American National Standards Institute Incorporated Dba American National Standards Institute), MS35305-7 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 22490R1 (Solar Turbines Incorporated Dba Solar Turbines Incorporated), S210NA38CAD16354BNCG1 (American National Standards Institute Incorporated Dba American National Standards Institute) and 16 more.

What NSN replaces 5305-00-071-2505?

There are 3 known substitutes for 5305-00-071-2505: 5305-00-225-3840, 4320-00-413-3517, 5305-01-582-6210. Verify interchangeability with system specifications before substitution.

What are the specifications of AES01C250875AW9A91?

Key specifications for AES01C250875AW9A91: Thread Direction: RIGHT-HAND; Thread Quantity Per Inch: 20; Nominal Thread Diameter: 0.250 INCHES IN; Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-071-2505 still in active supply?

NSN 5305-00-071-2505 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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