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0304221 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

0304221: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, head_style: FLAT CHAMFER, head_height: 0.105 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN, point_style: CUP, thread_class: 2A A, head_diameter: 0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-121-8117, 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
0304221
NSN: 5305-00-121-8117
FSC: 5305 — Screws
CAGE: U1621 — SIMPSON-LAWRENCE LTD JOHNSON AND EVI RUDE OUTBOARD MOTORS (GBR)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
head_styleFLAT CHAMFER
head_height0.105 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
point_styleCUP
thread_class2A A
head_diameter0.215 INCHES MINIMUM AND 0.225 INCHES MAXIMUM IN
thread_length0.250 INCHES MINIMUM IN
fastener_length0.324 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
thread_quantity_per_inch24
NSN5305-00-121-8117
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 0304221 · 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
•
HEAD HEIGHT: 0.105 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.324 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.250 INCHES MINIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: FLAT CHAMFER
•
THREAD DIRECTION: RIGHT-HAND
•
POINT STYLE: CUP
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.105 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN
FASTENER LENGTH0.324 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
THREAD LENGTH0.250 INCHES MINIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEFLAT CHAMFER
THREAD DIRECTIONRIGHT-HAND
POINT STYLECUP
INTERNAL DRIVE STYLESLOT
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 1
304221Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0304221?
0304221 is a SETSCREW.
What parts can replace 0304221?
There is 1 known substitute for 0304221: 304221. Substitute compatibility should be verified for your specific system.
What is the NSN for 0304221?
0304221 is cataloged in the U.S. Government catalog under NSN 5305-00-121-8117. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.