PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0903631Screw,cap,hexagon Head

Allis-Chalmers Corp · NSN 5305-00-017-9841 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-017-9841 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-017-9841. Primary manufacturer part number: 0903631.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE
  • Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Material: STEEL OVERALL
  • Width Between Flats: 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
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 5305-00-017-9841, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Allis-Chalmers Corp. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 43 commercial cross-references from 31 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-017-9841
Primary Part Number0903631
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAllis-Chalmers Corp
StatusCANCELLED
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Nominal Thread Diameter0.375 INCHES IN
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 5 GRADE
Hardness Rating23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
MaterialSTEEL OVERALL
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Head StyleHEXAGON
Thread Length1.000 INCHES MINIMUM IN
Thread Quantity Per Inch16
Fastener Length1.250 INCHES NOMINAL IN
Thread DirectionRIGHT-HAND
Minimum Tensile Strength120000 POUNDS PER SQUARE INCH LBS
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5305-00-068-05112DD63 INTERCHANGEABLE
Screw,cap,hexagon Head
Oshkosh Defense Llc
9540-00-145-4525 INTERCHANGEABLE
Angle,structural
3110-00-157-06183580 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
5325-00-175-1315 INTERCHANGEABLE
Ring,retaining
3110-00-184-0983S156 INTERCHANGEABLE
Bearing,ball,annular
New Hampshire Ball Bearings Inc Div Hitech Division
3455-00-232-410919834 INTERCHANGEABLE
Reamer,machine
Brown & Sharpe, Inc. Div Precision Measuring Instruments, Tesa Usa
3030-00-232-5975 INTERCHANGEABLE
Belt,v
5325-00-276-6056 INTERCHANGEABLE
Grommet,nonmetallic
4820-00-287-46707-3/4 INTERCHANGEABLE
Valve,float
O. C. Keckley Company
5120-00-293-079912Z713PC105 INTERCHANGEABLE
Wrench,spanner
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
0903631 Allis-Chalmers Corp (USA)
Q1804 Navistar International Corporation Dba Navistar (USA)
213733 General Motors Corp (USA)
2309D Service Products Corp (USA)
109258 General Motors Corp (USA)
BB6038 Diamond Reo Truck Co (USA)
CC6X20 Kaitlin Corp (USA)
92406 Briggs and Stratton Corp (USA)
S944 Weaver Div of Dura Corp (USA)
14X3233 Napco International Llc Dba Napco International Inc (USA)
21352 Dresser, Llc (USA)
MS35295-62 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
2774791 Energy Services Group Div of Cooper Industries Inc (USA)
V4B101 Teledyne Continental Motors Industrial Products Div Teledyne Industries Inc Sub of Teledyne Inc (USA)
P102-7 Tuthill Corporation Dba Tuthill Pump Group (USA)
903631 Allis-Chalmers Corp (USA)
X8-604 Eaton Corp Transmission Div (USA)
24A2C112 Ingersoll Rand Co (USA)
X1-29 Cushman Inc a Ransom Co Pobox 7248 Charlotte Nc 28241 7248 (USA)
2062 Empire Electric Brake Co
Related Parts
5305-00-068-0511INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
2DD63
9540-00-145-4525INTERCHANGEABLE
ANGLE,STRUCTURAL
3110-00-157-0618INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
3580
5325-00-175-1315INTERCHANGEABLE
RING,RETAINING
3110-00-184-0983INTERCHANGEABLE
BEARING,BALL,ANNULAR
S156
3455-00-232-4109INTERCHANGEABLE
REAMER,MACHINE
19834
3030-00-232-5975INTERCHANGEABLE
BELT,V
5325-00-276-6056INTERCHANGEABLE
GROMMET,NONMETALLIC
4820-00-287-4670INTERCHANGEABLE
VALVE,FLOAT
7-3/4
5120-00-293-0799INTERCHANGEABLE
WRENCH,SPANNER
12Z713PC105
3020-00-314-3129INTERCHANGEABLE
GEAR,HELICAL
2810-00-317-4164INTERCHANGEABLE
SPRING,OIL PRESSURE
21352

Frequently Asked Questions

What is NSN 5305-00-017-9841?

NSN 5305-00-017-9841 is a Screw,cap,hexagon Head, manufactured by Allis-Chalmers Corp, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-017-9841?

NSN 5305-00-017-9841 has 43 cross-referenced part numbers: 0903631 (Allis-Chalmers Corp), Q1804 (Navistar International Corporation Dba Navistar), 213733 (General Motors Corp), 2309D (Service Products Corp), 109258 (General Motors Corp) and 38 more.

What NSN replaces 5305-00-017-9841?

There are 12 known substitutes for 5305-00-017-9841: 5305-00-068-0511, 9540-00-145-4525, 3110-00-157-0618 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 0903631?

Key specifications for 0903631: Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.375 INCHES IN; Nondefinitive Spec/std Data: 2 TYPE AND 10P STYLE AND 5 GRADE; Hardness Rating: 23.0 ROCKWELL C MINIMUM AND 30.0 ROCKWELL C MAXIMUM OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-017-9841 still in active supply?

NSN 5305-00-017-9841 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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