PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1821BH038F125NScrew,cap,hexagon Head

The American Society of Mechanical Engineers · NSN 5305-00-269-3238 · FSC 5305 · No Item Name Available
Verified by PartsTable
NSN 5305-00-269-3238 — this item is cataloged by the U.S. Government under National Stock Number 5305-00-269-3238. Primary manufacturer part number: B1821BH038F125N.
Features
  • Screw,cap,hexagon Head — FSC 5305
  • Thread Class: 2A A
  • Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
  • Material: STEEL OVERALL
  • Nominal Thread Diameter: 0.375 INCHES IN
  • Thread Series Designator: UNF
  • Thread Quantity Per Inch: 24
  • 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 5305-00-269-3238, 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 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5305-00-269-3238
Primary Part NumberB1821BH038F125N
Item NameScrew,cap,hexagon Head
FSC / FSG5305 / 53 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Thread Class2A A
Hardness Rating32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL
MaterialSTEEL OVERALL
Nominal Thread Diameter0.375 INCHES IN
Thread Series DesignatorUNF
Thread Quantity Per Inch24
Minimum Tensile Strength150000 POUNDS PER SQUARE INCH LBS
Surface TreatmentZINC AND CHROMATE OVERALL
Nondefinitive Spec/std Data2 TYPE AND 10P STYLE AND 8 GRADE
Fastener Length1.250 INCHES NOMINAL IN
Material Document and ClassificationSAE J429 GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Width Between Flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
Head StyleHEXAGON
Surface Treatment Document and ClassificationASTM B633 TY 2 SC 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Thread DirectionRIGHT-HAND
Head Height0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN
Thread Length1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 11
5305-00-018-1370 INTERCHANGEABLE
Screw,cap,hexagon Head
5305-00-655-9714 INTERCHANGEABLE
Screw,cap,hexagon Head
2520-00-891-3923BBC1669 INTERCHANGEABLE
Pressure Plate Assembly,clutch
Sachs-Boge of America
1560-01-014-734290-7821 INTERCHANGEABLE
Sleeve,handle
The Boeing Company Div Defense
4730-01-065-9356 INTERCHANGEABLE
Adapter,straight,pipe to Boss
4730-01-126-97580502-8-8 INTERCHANGEABLE
Adapter,straight,pipe to Boss
Parker-Hannifin Corporation Dba Pneutronics Div Tube Fittings Division
6515-01-139-864918-1370 INTERCHANGEABLE
Forceps,tissue
Pilling Surgical Inc Dba Pilling Weck Div Pilling Instruments
4730-01-161-007210503872 INTERCHANGEABLE
Adapter,straight,pipe to Boss
General Dynamics Land Systems Canadacorp
5306-01-242-5782 INTERCHANGEABLE
Bolt,machine
4730-01-386-7250181370M INTERCHANGEABLE
Bolt,fluid Passage
Rolls-Royce Solutions America Inc
Cross-Reference Index
Part NumberManufacturer
907821 Scandinavian Manufacturing Scama Ab (SWE)
S000069 Anthony York Co (USA)
91248A626 Mcmaster-Carr Supply Co (USA)
MS35304-62 Zf Industrieantriebe Witten Gmbh (DEU)
FF-S-85 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
XX002-0976 Rdm Technology B.v. (NLD)
181370 Zf Industrieantriebe Witten Gmbh (DEU)
18C620 Dana Off Highway Products, Llc (USA)
1551 Zf Industrieantriebe Witten Gmbh (DEU)
S210NA38FAK19354BNCG1 American National Standards Institute Incorporated Dba American National Standards Institute (USA)
18257-182 Curtiss-Wright Flow Control Service, Llc Dba Engineered Arresting Systems - Esco Div Cw Flow Control Svc Llc Dba (USA)
MS90727-62 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
B1821BH038F125N American National Standards Institute Incorporated Dba American National Standards Institute (USA)
B1821BH038F125N PRIMARY The American Society of Mechanical Engineers (USA)
01504-70 Zf Industrieantriebe Witten Gmbh (DEU)
A200022988 Oshkosh Aerotech, Llc Div Jetway Systems (USA)
5305002693238 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
18257-182 Eme Elektro-Metall Export Gmbh (DEU)
427563 Zf Industrieantriebe Witten Gmbh (DEU)
18C620 Clark Equipment Co (USA)
Related Parts
5305-00-018-1370INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
5305-00-655-9714INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
2520-00-891-3923INTERCHANGEABLE
PRESSURE PLATE ASSEMBLY,CLUTCH
BBC1669
1560-01-014-7342INTERCHANGEABLE
SLEEVE,HANDLE
90-7821
4730-01-065-9356INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
4730-01-126-9758INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
0502-8-8
6515-01-139-8649INTERCHANGEABLE
FORCEPS,TISSUE
18-1370
4730-01-161-0072INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO BOSS
10503872
5306-01-242-5782INTERCHANGEABLE
BOLT,MACHINE
4730-01-386-7250INTERCHANGEABLE
BOLT,FLUID PASSAGE
181370M
5306-01-682-4254INTERCHANGEABLE
BOLT,MACHINE
181370

Frequently Asked Questions

What is NSN 5305-00-269-3238?

NSN 5305-00-269-3238 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 5305-00-269-3238?

NSN 5305-00-269-3238 has 21 cross-referenced part numbers: 907821 (Scandinavian Manufacturing Scama Ab), S000069 (Anthony York Co), 91248A626 (Mcmaster-Carr Supply Co), MS35304-62 (Zf Industrieantriebe Witten Gmbh), FF-S-85 (Federal Specifications Promulgated by General Services Administration Washington DC) and 16 more.

What NSN replaces 5305-00-269-3238?

There are 11 known substitutes for 5305-00-269-3238: 5305-00-018-1370, 5305-00-655-9714, 2520-00-891-3923 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1821BH038F125N?

Key specifications for B1821BH038F125N: Thread Class: 2A A; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL; Material: STEEL OVERALL; End Item Identification: MRAP - COUGAR CAT1 A2; MRAP BUFFALO MK2A2; MEDIUM MINE PROTECTED VEHICLE - MMPV; MULTIPLE LAUNCH ROCKET SYSTEM. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5305-00-269-3238 still in active supply?

NSN 5305-00-269-3238 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.
PartsTable Design LLC · partstable.com