PartsTable
Technical Data Sheet
Download PDF

GS551J06-3 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GS551J06-3: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.223 INCHES NOMINAL IN, thread_length: 0.187 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN, screw_material: STEEL COMP 4037 OR STEEL COMP 8740, fastener_length: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-314-6936, 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
GS551J06-3
NSN: 5305-01-314-6936
FSC: 5305 — Screws
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.223 INCHES NOMINAL IN
thread_length0.187 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
screw_materialSTEEL COMP 4037 OR STEEL COMP 8740
fastener_length0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
hardness_rating33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
special_featuresCOLOR IS DARK BLUE
thread_directionRIGHT-HAND
countersink_angle100.0 DEGREES NOMINAL
internal_drive_styleSLOT
nominal_thread_diameter0.138 INCHES IN
NSN5305-01-314-6936
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GS551J06-3 · 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
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE
•
FASTENER LENGTH: 0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.187 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
•
HARDNESS RATING: 33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
•
NOMINAL THREAD DIAMETER: 0.138 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL COMP 4037 OR STEEL COMP 8740
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE
FASTENER LENGTH0.422 INCHES MINIMUM AND 0.454 INCHES MAXIMUM IN
THREAD LENGTH0.187 INCHES MINIMUM AND 0.249 INCHES MAXIMUM IN
HARDNESS RATING33.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
NOMINAL THREAD DIAMETER0.138 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL COMP 4037 OR STEEL COMP 8740
SPECIAL FEATURESCOLOR IS DARK BLUE
INTERNAL DRIVE STYLESLOT
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES 2
AIC551J06-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
BM19059-06-3Reference 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
Ready to buy GS551J06-3?
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 GS551J06-3?
GS551J06-3 is a SCREW,MACHINE.
What parts can replace GS551J06-3?
There are 2 known substitutes for GS551J06-3: AIC551J06-3, BM19059-06-3. Substitute compatibility should be verified for your specific system.
What is the NSN for GS551J06-3?
GS551J06-3 is cataloged in the U.S. Government catalog under NSN 5305-01-314-6936. 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 — GS551J06-3

✓ 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.