PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1821BH038C300NScrew,cap,hexagon Head

American National Standards Institute Incorporated Dba American National Standards Institute · NSN 5305-00-846-5703 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-846-5703 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-846-5703. Primary manufacturer part number: B1821BH038C300N.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Thread Class: 2A A
  • Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
  • Surface Finish: 63.0 MICROINCHES THREADS
  • Thread Direction: RIGHT-HAND
  • Material Document and Classification: SAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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 5305-00-846-5703, 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 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 10 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
NSN5305-00-846-5703
Primary Part NumberB1821BH038C300N
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerAmerican National Standards Institute Incorporated Dba American National Standards Institute
StatusCANCELLED
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Nominal Thread Diameter0.375 INCHES IN
Thread Class2A A
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Surface Finish63.0 MICROINCHES THREADS
Thread DirectionRIGHT-HAND
Material Document and ClassificationSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A354 GRADE BD ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Thread Quantity Per Inch16
Surface TreatmentZINC AND CHROMATE OVERALL
MaterialSTEEL OVERALL
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Head StyleHEXAGON
Fastener Length2.906 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
Thread Length1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5325-00-050-2857 INTERCHANGEABLE
Grommet,nonmetallic
6150-00-137-642795115-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
4730-00-196-1471A733S-169CFG INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
6810-00-247-0598 INTERCHANGEABLE
Potassium Cyanide
6810-00-264-6526 INTERCHANGEABLE
Potassium Cyanide
1610-00-315-8594506277 INTERCHANGEABLE
Stop Assy,low Pitch
Hamilton Sundstrand Corporation Dba Collins Aerospace
6910-00-809-6881800-6881 INTERCHANGEABLE
Moulage,war Wound
Nasco Healthcare Inc
4720-00-835-3488R23532-1 INTERCHANGEABLE
Hose Assembly,nonmetallic
Parker-Hannifin Corporation Dba Pneutronics Div Stratoflex Product Division
4140-01-161-2741 INTERCHANGEABLE
Blower,wheel
6110-01-437-766295115 INTERCHANGEABLE
Panel,power Distribution
Generac Corp
Cross-Reference Index
Part NumberManufacturer
5305PL0797165 Jednolity Indeks Materialowy - Uniform Material Index (POL)
5305008465703 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
MS90728-70 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5305002693220 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
B1821BH038C300N PRIMARY American National Standards Institute Incorporated Dba American National Standards Institute (USA)
95115 Fastenal Company Dba Fastenal Co (USA)
2139HX1 Oshkosh Corp (USA)
10082625 Nimikkeistokeskus Ncb Finland (FIN)
MS35303-70 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
6881 Terex Reedrill Dba Reedrill Texoma Div Terex Mining (USA)
0826V049 Zf Industrieantriebe Witten Gmbh (DEU)
5305-269-3220 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
2139HX1 Oshkosh Defense Llc (USA)
Related Parts
5325-00-050-2857INTERCHANGEABLE
GROMMET,NONMETALLIC
6150-00-137-6427INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
95115-1
4730-00-196-1471INTERCHANGEABLE
NIPPLE,PIPE
A733S-169CFG
6810-00-247-0598INTERCHANGEABLE
POTASSIUM CYANIDE
6810-00-264-6526INTERCHANGEABLE
POTASSIUM CYANIDE
1610-00-315-8594INTERCHANGEABLE
STOP ASSY,LOW PITCH
506277
6910-00-809-6881INTERCHANGEABLE
MOULAGE,WAR WOUND
800-6881
4720-00-835-3488INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
R23532-1
4140-01-161-2741INTERCHANGEABLE
BLOWER,WHEEL
6110-01-437-7662INTERCHANGEABLE
PANEL,POWER DISTRIBUTION
95115
4240-01-479-1679INTERCHANGEABLE
DIRECTOR,AIR
5310-01-608-8541INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
6881

Frequently Asked Questions

What is NSN 5305-00-846-5703?

NSN 5305-00-846-5703 is a Screw,cap,hexagon Head, manufactured by American National Standards Institute Incorporated Dba American National Standards Institute, classified under FSC 5305 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5305-00-846-5703?

NSN 5305-00-846-5703 has 13 cross-referenced part numbers: 5305PL0797165 (Jednolity Indeks Materialowy - Uniform Material Index), 5305008465703 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), MS90728-70 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 5305002693220 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales), B1821BH038C300N (American National Standards Institute Incorporated Dba American National Standards Institute) and 8 more.

What NSN replaces 5305-00-846-5703?

There are 12 known substitutes for 5305-00-846-5703: 5325-00-050-2857, 6150-00-137-6427, 4730-00-196-1471 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1821BH038C300N?

Key specifications for B1821BH038C300N: Minimum Tensile Strength: 150000 POUNDS PER SQUARE INCH LBS; Nominal Thread Diameter: 0.375 INCHES IN; Thread Class: 2A A; Head Height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-846-5703 still in active supply?

NSN 5305-00-846-5703 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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