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GN512FB8 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

GN512FB8: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, nut_style: SLEEVE, nut_length: 0.120 INCHES MINIMUM IN, lubrication: SOLUBLE LUBRICANT, nut_diameter: 0.2630 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM IN, thread_class: 3B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-280-6767, 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
GN512FB8
NSN: 5310-01-280-6767
FSC: 5310 — Nuts and Washers
CAGE: 98524 — MONOGRAM AEROSPACE FASTENERS, INC DBA TRIMAS AEROSPACE DIV MONOGRAM AEROSPACE FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
nut_styleSLEEVE
nut_length0.120 INCHES MINIMUM IN
lubricationSOLUBLE LUBRICANT
nut_diameter0.2630 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNS
flange_diameter0.507 INCHES MAXIMUM IN
flange_thickness0.104 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM FLANGE
surface_treatmentCADMIUM AND CHROMATE OVERALL
NSN5310-01-280-6767
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: GN512FB8 · 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
•
LUBRICATION: SOLUBLE LUBRICANT
•
FLANGE DIAMETER: 0.507 INCHES MAXIMUM IN
•
NUT LENGTH: 0.120 INCHES MINIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FLANGE THICKNESS: 0.104 INCHES MAXIMUM IN
•
THREAD SERIES: UNS
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.216 INCHES IN
TECHNICAL CHARACTERISTICS
LUBRICATIONSOLUBLE LUBRICANT
FLANGE DIAMETER0.507 INCHES MAXIMUM IN
NUT LENGTH0.120 INCHES MINIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FLANGE THICKNESS0.104 INCHES MAXIMUM IN
THREAD SERIESUNS
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.216 INCHES IN
NUT DIAMETER0.2630 INCHES MINIMUM AND 0.2650 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPEROUND OVERALL
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 2
C3629-8SReference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
ASPF-S-DT8Reference 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 GN512FB8?
GN512FB8 is a NUT,SLEEVE.
What parts can replace GN512FB8?
There are 2 known substitutes for GN512FB8: C3629-8S, ASPF-S-DT8. Substitute compatibility should be verified for your specific system.
What is the NSN for GN512FB8?
GN512FB8 is cataloged in the U.S. Government catalog under NSN 5310-01-280-6767. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.