PartsTable
Technical Data Sheet
Download PDF

VS2521-20FS36 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

VS2521-20FS36: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL OR STEEL COMP H11 OVERALL, hole_type: DRILLED, head_style: DOUBLE HEXAGON, grip_length: 2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN, head_height: 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN, thread_class: 3A A. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-150-3595, 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
VS2521-20FS36
NSN: 5306-00-150-3595
FSC: 5306 — Bolts
CAGE: 06950 — HOWMET GLOBAL FASTENING SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL OR STEEL COMP H11 OVERALL
hole_typeDRILLED
head_styleDOUBLE HEXAGON
grip_length2.240 INCHES MINIMUM AND 2.260 INCHES MAXIMUM IN
head_height0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
thread_class3A A
grip_diameter1.2475 INCHES MINIMUM AND 1.2490 INCHES MAXIMUM IN
hole_diameter0.035 INCHES NOMINAL IN
hole_quantity1
thread_length1.349 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
fastener_length3.609 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
hardness_rating46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
NSN5306-00-150-3595
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: VS2521-20FS36 · 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: 0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
•
FASTENER LENGTH: 3.609 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 1.349 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
•
HARDNESS RATING: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK UNTHREADED HOLE DIAMETER: 0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
•
HOLE CONFIGURATION STYLE: HEXAGON FLATS
•
MATERIAL DOCUMENT AND CLASSIFICATION: SPS-M-107 FSCM 56878 MFR REF 1ST MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.680 INCHES MINIMUM AND 0.700 INCHES MAXIMUM IN
FASTENER LENGTH3.609 INCHES MINIMUM AND 3.656 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY2,CL3 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH1.349 INCHES MINIMUM AND 1.416 INCHES MAXIMUM IN
HARDNESS RATING46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM FIRST HOLE IN
HOLE CONFIGURATION STYLEHEXAGON FLATS
MATERIAL DOCUMENT AND CLASSIFICATIONSPS-M-107 FSCM 56878 MFR REF 1ST MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER1.250 INCHES IN
HEAD STYLEDOUBLE HEXAGON
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 3
GB511B20D36Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
EWSB22-20-36Reference document
Same NSN cross-reference
Reference document — Secondary reference
VS2521-20FD36Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
Ready to buy VS2521-20FS36?
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 VS2521-20FS36?
VS2521-20FS36 is a BOLT,SHEAR.
What parts can replace VS2521-20FS36?
There are 3 known substitutes for VS2521-20FS36: GB511B20D36, EWSB22-20-36, VS2521-20FD36. Substitute compatibility should be verified for your specific system.
What is the NSN for VS2521-20FS36?
VS2521-20FS36 is cataloged in the U.S. Government catalog under NSN 5306-00-150-3595. 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 — VS2521-20FS36

✓ 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.