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GS1016-6-26 — BOLT,CLOSE TOLERANCE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS1016-6-26: BOLT,CLOSE TOLERANCE.

The BOLT,CLOSE TOLERANCE is a the manufacturer industrial component. Key specifications include head_style: DOUBLE HEXAGON, 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, thread_direction: RIGHT-HAND, width_between_flats: 0.564 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-472-5160, 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
GS1016-6-26
NSN: 5306-01-472-5160
FSC: 5306 — Bolts
CAGE: 1EM77 — B & B SPECIALTIES INC DBA GS AEROSPACE DIV GS AEROSPACE (USA)
SPECIFICATIONS
head_styleDOUBLE HEXAGON
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_directionRIGHT-HAND
width_between_flats0.564 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN
end_item_identification1520013558250
nominal_thread_diameter0.375 INCHES IN
thread_quantity_per_inch24
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF)
NSN5306-01-472-5160
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS1016-6-26 · 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
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: DOUBLE HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
•
WIDTH BETWEEN FLATS: 0.564 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN
•
GRIP DIAMETER: 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.200 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEDOUBLE HEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.564 INCHES MINIMUM AND 0.632 INCHES MAXIMUM IN
GRIP DIAMETER0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN
THREAD CLASS3A A
END ITEM IDENTIFICATION1520013558250
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF)
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
MB61-6-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
ST3M453-6-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
WC453-6-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
HP5453-6-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
FTC7812-6-26Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
VS3204-6-26Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GS1016-6-26?
GS1016-6-26 is a BOLT,CLOSE TOLERANCE.
What parts can replace GS1016-6-26?
There are 7 known substitutes for GS1016-6-26: MB61-6-26, ST3M453-6-26, WC453-6-26 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GS1016-6-26?
GS1016-6-26 is cataloged in the U.S. Government catalog under NSN 5306-01-472-5160. This indicates validated use in U.S. government and defense supply chains.
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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.