PartsTable
Technical Data Sheet
Download PDF

VS2521-7F29 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

VS2521-7F29: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP H11 OR STEEL OVERALL, head_style: DOUBLE HEXAGON, grip_length: 1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN, head_height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-150-3574, 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
VS2521-7F29
NSN: 5306-00-150-3574
FSC: 5306 — Bolts
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL COMP H11 OR STEEL OVERALL
head_styleDOUBLE HEXAGON
grip_length1.802 INCHES MINIMUM AND 1.822 INCHES MAXIMUM IN
head_height0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN
thread_length0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
fastener_length2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_between_flats0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN
NSN5306-00-150-3574
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: VS2521-7F29 · 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: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
•
FASTENER LENGTH: 2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR SPS-M-107 FSCM 56878 MFR REF 2ND MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.438 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
FASTENER LENGTH2.262 INCHES MINIMUM AND 2.309 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONNAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.440 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6485 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6487 ASSN STD 1ST MATERIAL RESPONSE OR SPS-M-107 FSCM 56878 MFR REF 2ND MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.438 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA26512-GB511B MANUFACTURERS STANDARD
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 4
GB511GG-7A-29ASame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
GB511B7-29Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
VS2521F7-29Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
EWSB22-7A29Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy VS2521-7F29?
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 VS2521-7F29?
VS2521-7F29 is a BOLT,SHEAR.
What parts can replace VS2521-7F29?
There are 4 known substitutes for VS2521-7F29: GB511GG-7A-29A, GB511B7-29, VS2521F7-29 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for VS2521-7F29?
VS2521-7F29 is cataloged in the U.S. Government catalog under NSN 5306-00-150-3574. 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 — VS2521-7F29

✓ 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.