PartsTable
Technical Data Sheet
Download PDF

2121 4581-461 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2121 4581-461: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL PROPERTY CLASS 8.8 OVERALL, head_style: FLAT COUNTERSUNK, head_height: 4.65 MILLIMETERS MAXIMUM MM, thread_class: 6G G, head_diameter: 15.37 MILLIMETERS MINIMUM AND 15.80 MILLIMETERS MAXIMUM MM, thread_length: 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-736-1695, 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
2121 4581-461
NSN: 5305-01-736-1695
FSC: 5305 — Screws
CAGE: AC90N — BAE SYSTEMS HAGGLUNDS AKTIEBOLAG (SWE)
SPECIFICATIONS
materialSTEEL PROPERTY CLASS 8.8 OVERALL
head_styleFLAT COUNTERSUNK
head_height4.65 MILLIMETERS MAXIMUM MM
thread_class6G G
head_diameter15.37 MILLIMETERS MINIMUM AND 15.80 MILLIMETERS MAXIMUM MM
thread_length49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
fastener_length49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
thread_directionRIGHT-HAND
countersink_angle90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM
surface_treatmentZINC NICKEL OVERALL
internal_drive_styleTORX
spline_major_diameter7.95 MILLIMETERS NOMINAL MM
NSN5305-01-736-1695
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2121 4581-461 · 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: 4.65 MILLIMETERS MAXIMUM MM
•
FASTENER LENGTH: 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: ISO4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD PITCH IN MILLIMETERS: 1.25
•
THREAD LENGTH: 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
•
SPLINE MAJOR DIAMETER: 7.95 MILLIMETERS NOMINAL MM
•
NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS MM
•
HEAD STYLE: FLAT COUNTERSUNK
TECHNICAL CHARACTERISTICS
HEAD HEIGHT4.65 MILLIMETERS MAXIMUM MM
FASTENER LENGTH49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONISO4042 INTERNATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD PITCH IN MILLIMETERS1.25
THREAD LENGTH49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM MM
SPLINE MAJOR DIAMETER7.95 MILLIMETERS NOMINAL MM
NOMINAL THREAD DIAMETER8.0 MILLIMETERS MM
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATAI9008-ISO14581 INTERNATIONAL STD/SPEC
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 1
ISO14581Reference 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
Ready to buy 2121 4581-461?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 2121 4581-461?
2121 4581-461 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 2121 4581-461?
There is 1 known substitute for 2121 4581-461: ISO14581. Substitute compatibility should be verified for your specific system.
What is the NSN for 2121 4581-461?
2121 4581-461 is cataloged in the U.S. Government catalog under NSN 5305-01-736-1695. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 2121 4581-461