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GS1016-6-18 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS1016-6-18: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include material: STEEL COMP XM-13 OVERALL, head_style: DOUBLE HEXAGON, grip_length: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN, head_height: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN, thread_class: 3A A, grip_diameter: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-442-5377, 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
GS1016-6-18
NSN: 5306-01-442-5377
FSC: 5306 — Bolts
CAGE: 1EM77 — B & B SPECIALTIES INC DBA GS AEROSPACE DIV GS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL COMP XM-13 OVERALL
head_styleDOUBLE HEXAGON
grip_length1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
head_height0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
thread_length0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
fastener_length1.625 INCHES MINIMUM AND 1.672 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_diameter0.375 INCHES IN
NSN5306-01-442-5377
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS1016-6-18 · 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: 0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.625 INCHES MINIMUM AND 1.672 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
GRIP LENGTH: 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
•
WIDTH BETWEEN FLATS: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
FASTENER LENGTH1.625 INCHES MINIMUM AND 1.672 INCHES MAXIMUM IN
THREAD LENGTH0.490 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
GRIP LENGTH1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN
WIDTH BETWEEN FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
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
BM17019-6-18Reference document
Same NSN cross-reference
Reference document — Secondary reference
109453-6-18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
11825-6-18Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3204-6-18Reference 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
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FREQUENTLY ASKED QUESTIONS
What is GS1016-6-18?
GS1016-6-18 is a BOLT,CLOSE TOLERANCE.
What parts can replace GS1016-6-18?
There are 4 known substitutes for GS1016-6-18: BM17019-6-18, 109453-6-18, 11825-6-18 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GS1016-6-18?
GS1016-6-18 is cataloged in the U.S. Government catalog under NSN 5306-01-442-5377. This indicates validated use in U.S. government and defense supply chains.
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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.