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218102055 — SCREW,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

218102055: SCREW,SHOULDER.

The SCREW,SHOULDER is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY OVERALL, head_style: HEXAGON, head_height: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN, thread_length: 0.5000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-718-9188, 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
218102055
NSN: 5305-01-718-9188
NIINs: 017189188, 017190469
FSC: 5305 — Screws
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialNICKEL ALLOY OVERALL
head_styleHEXAGON
head_height0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.853 INCHES MINIMUM AND 0.875 INCHES MAXIMUM IN
thread_length0.5000 INCHES NOMINAL IN
fastener_length1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
head_inside_diameter0.312 INCHES NOMINAL IN
internal_drive_styleHEXAGON
nominal_thread_diameter0.625 INCHES IN
thread_quantity_per_inch13
NSN5305-01-718-9188
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 218102055 · 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 INSIDE DIAMETER: 0.312 INCHES NOMINAL IN
•
HEAD HEIGHT: 0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.5000 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-N-281 CL A AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD DIAMETER: 0.625 INCHES IN
•
HEAD STYLE: HEXAGON
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD INSIDE DIAMETER0.312 INCHES NOMINAL IN
HEAD HEIGHT0.302 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
FASTENER LENGTH1.745 INCHES MINIMUM AND 1.755 INCHES MAXIMUM IN
THREAD LENGTH0.5000 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 CL A AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD DIAMETER0.625 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
SPECIFICATION/STANDARD DATA96906-NAS-51975 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
INTERNAL DRIVE STYLEHEXAGON
SUBSTITUTES & CROSS-REFERENCES 2
MS51975K45Reference document
Same NSN cross-reference
Reference document — Secondary reference
ERH547-1117A161-1Same 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 218102055?
218102055 is a SCREW,SHOULDER.
What parts can replace 218102055?
There are 2 known substitutes for 218102055: MS51975K45, ERH547-1117A161-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 218102055?
218102055 is cataloged in the U.S. Government catalog under NSN 5305-01-718-9188. This indicates validated use in U.S. government and defense supply chains.
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