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VS3319-7D18 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

VS3319-7D18: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY 718 OVERALL, head_style: SPLINE DRIVE SHEAR HEAD, grip_length: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN, head_height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-349-0811, 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
VS3319-7D18
NSN: 5306-01-349-0811
FSC: 5306 — Bolts
CAGE: 92215 — HOWMET GLOBAL FASTENING SYSTEMS INC DIV TORRANCE OPERATIONS (USA)
SPECIFICATIONS
materialNICKEL ALLOY 718 OVERALL
head_styleSPLINE DRIVE SHEAR HEAD
grip_length1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
head_height0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN
thread_length0.599 INCHES NOMINAL IN
fastener_length1.609 INCHES MINIMUM AND 1.639 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
head_minor_diameter0.708 INCHES NOMINAL IN
end_item_identificationSUPPORT EQUIPMENT (SE),B-2 BOMBER;AIRCRAFT,B-2 BOMBER (ATB)
NSN5306-01-349-0811
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: VS3319-7D18 · 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: 1.609 INCHES MINIMUM AND 1.639 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD LENGTH: 0.599 INCHES NOMINAL IN
•
SHANK UNTHREADED HOLE DIAMETER: 0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.437 INCHES IN
•
HEAD STYLE: SPLINE DRIVE SHEAR HEAD
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
FASTENER LENGTH1.609 INCHES MINIMUM AND 1.639 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD LENGTH0.599 INCHES NOMINAL IN
SHANK UNTHREADED HOLE DIAMETER0.106 INCHES MINIMUM AND 0.111 INCHES MAXIMUM FIRST HOLE IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5662 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.437 INCHES IN
HEAD STYLESPLINE DRIVE SHEAR HEAD
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
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 7
123709-7D18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MB209-7D18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VCJ0001-7D18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
03A098-7D18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
SII1188-7D18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AIC1653-7D18Same 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 VS3319-7D18?
VS3319-7D18 is a BOLT,CLOSE TOLERANCE.
What parts can replace VS3319-7D18?
There are 7 known substitutes for VS3319-7D18: 123709-7D18, MB209-7D18, VCJ0001-7D18 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for VS3319-7D18?
VS3319-7D18 is cataloged in the U.S. Government catalog under NSN 5306-01-349-0811. 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.