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Technical Data Sheet
PartsTable / COMPONENT / 203X
203X ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,CAP,HEXAGON HEAD is a the manufacturer industrial component. Key specifications include head_style: HEXAGON, head_height: 0.280 INCHES NOMINAL IN, thread_length: 0.750 INCHES NOMINAL IN, fastener_length: 0.750 INCHES NOMINAL IN, special_features: MATERIAL: 18-8 SS, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-651-7194, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
203X
NSN: 5305-01-651-7194
FSC: 5305
CAGE: 0KMA3 — ADAMS NUT AND BOLT CO INC (USA)
SPECIFICATIONS
head_styleHEXAGON
head_height0.280 INCHES NOMINAL IN
thread_length0.750 INCHES NOMINAL IN
fastener_length0.750 INCHES NOMINAL IN
special_featuresMATERIAL: 18-8 SS
thread_directionRIGHT-HAND
width_between_flats0.500 INCHES NOMINAL IN
end_item_identification6115-01-591-1161;GENERATOR,HEATING AND AIR CONDITIONER
nominal_thread_diameter0.3125 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNF
part_name_assigned_by_controlling_agencySCREW,STD HEX
NSN5305-01-651-7194
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 203X · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
NOMINAL THREAD DIAMETER: 0.3125 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD LENGTH: 0.750 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.280 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 24
•
FASTENER LENGTH: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.3125 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD LENGTH0.750 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYSCREW,STD HEX
SPECIAL FEATURESMATERIAL: 18-8 SS
HEAD HEIGHT0.280 INCHES NOMINAL IN
THREAD QUANTITY PER INCH24
FASTENER LENGTH0.750 INCHES NOMINAL IN
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS0.500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
2-330 N304-75Interchangeable
interchangeable cross-reference
interchangeable
54A125-330Interchangeable
interchangeable cross-reference
interchangeable
AS568-330MIL-P-25732Interchangeable
interchangeable cross-reference
interchangeable
50076AInterchangeable
interchangeable cross-reference
interchangeable
SC-B-70017-23Interchangeable
interchangeable cross-reference
interchangeable
62233Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 203X?
203X is a SCREW,CAP,HEXAGON HEAD.
What parts can replace 203X?
There are 7 known substitutes for 203X: 2-330 N304-75, 54A125-330, AS568-330MIL-P-25732 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 203X?
203X is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-01-651-7194. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026