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BM3220-8A50 — BOLT,SHEAR

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BM3220-8A50: BOLT,SHEAR.

The BOLT,SHEAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: DOUBLE HEXAGON W/HOLE, grip_length: 3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN, head_height: 0.504 INCHES NOMINAL IN, thread_class: 3A A, grip_diameter: 0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-159-2765, 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
BM3220-8A50
NSN: 5306-00-159-2765
FSC: 5306 — Bolts
CAGE: 05720 — OMARK INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleDOUBLE HEXAGON W/HOLE
grip_length3.115 INCHES MINIMUM AND 3.135 INCHES MAXIMUM IN
head_height0.504 INCHES NOMINAL IN
thread_class3A A
grip_diameter0.4985 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN
thread_length0.790 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
fastener_length3.925 INCHES MINIMUM AND 3.955 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentNICKEL AND CADMIUM AND CHROMATE OVERALL
width_between_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_diameter0.500 INCHES IN
NSN5306-00-159-2765
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BM3220-8A50 · 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
•
EXTENDED WASHER THICKNESS: 0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
•
HEAD HEIGHT: 0.504 INCHES NOMINAL IN
•
FASTENER LENGTH: 3.925 INCHES MINIMUM AND 3.955 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: STSBS 002,LOCKHEED-GEORGIA CO MFR REF ALL TREATMENT RESPONSES OVERALL
•
EXTENDED WASHER DIAMETER: 0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.790 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: H-11 STSBS002,FSCM 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
EXTENDED WASHER THICKNESS0.113 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
HEAD HEIGHT0.504 INCHES NOMINAL IN
FASTENER LENGTH3.925 INCHES MINIMUM AND 3.955 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONSTSBS 002,LOCKHEED-GEORGIA CO MFR REF ALL TREATMENT RESPONSES OVERALL
EXTENDED WASHER DIAMETER0.818 INCHES MINIMUM AND 0.828 INCHES MAXIMUM IN
THREAD LENGTH0.790 INCHES MINIMUM AND 0.840 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONH-11 STSBS002,FSCM 98897 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.500 INCHES IN
HEAD STYLEDOUBLE HEXAGON W/HOLE
THREAD DIRECTIONRIGHT-HAND
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
STSBG002A08U050Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
VS2980A08U050Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11695A08U050Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
68486-8-050Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 BM3220-8A50?
BM3220-8A50 is a BOLT,SHEAR.
What parts can replace BM3220-8A50?
There are 4 known substitutes for BM3220-8A50: STSBG002A08U050, VS2980A08U050, 11695A08U050 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BM3220-8A50?
BM3220-8A50 is cataloged in the U.S. Government catalog under NSN 5306-00-159-2765. 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.