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Technical Data Sheet
GN512BGS8-321 ✓ Verified by PartsTable
· NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The NUT,PLAIN,BLIND RIVET is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1108 OR STEEL COMP 1110 OVERALL, nut_style: BLIND RIVET W/SMOOTH ROUND SHANK, head_style: FLAT COUNTERSUNK, nut_length: 0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN, nut_diameter: 0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN, thread_class: 3B. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-356-1745, 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
GN512BGS8-321
NSN: 5310-00-356-1745
FSC: 5310
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1108 OR STEEL COMP 1110 OVERALL
nut_styleBLIND RIVET W/SMOOTH ROUND SHANK
head_styleFLAT COUNTERSUNK
nut_length0.672 INCHES MINIMUM AND 0.702 INCHES MAXIMUM IN
nut_diameter0.217 INCHES MINIMUM AND 0.221 INCHES MAXIMUM IN
thread_class3B
head_diameter0.355 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
shank_end_typeOPEN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.164 INCHES IN
NSN5310-00-356-1745
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: GN512BGS8-321 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
HEAD DIAMETER: 0.355 INCHES NOMINAL IN
THREAD DIRECTION: RIGHT-HAND
SHANK END TYPE: OPEN
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE: 0.164 INCHES IN
THREAD QUANTITY PER INCH: 32
HEAD COUNTERSINK ANGLE: 99.00 DEGREES MINIMUM AND 100.00 DEGREES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.355 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
SHANK END TYPEOPEN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD QUANTITY PER INCH32
HEAD COUNTERSINK ANGLE99.00 DEGREES MINIMUM AND 100.00 DEGREES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1108 OR STEEL COMP 1110 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
S832-1Interchangeable
interchangeable cross-reference
interchangeable
75031Interchangeable
interchangeable cross-reference
interchangeable
MIL-N-45938/1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GN512BGS8-321?
GN512BGS8-321 is a NUT,PLAIN,BLIND RIVET.
What parts can replace GN512BGS8-321?
There are 3 known substitutes for GN512BGS8-321: S832-1, 75031, MIL-N-45938/1. Substitute compatibility should be verified for your specific system.
What is the NSN for GN512BGS8-321?
GN512BGS8-321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-356-1745. This indicates validated use in U.S. government and defense supply chains.
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