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612A278P2 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

612A278P2: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, nut_style: HEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNEF, thread_direction: LEFT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-655-6759, 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
612A278P2
NSN: 5310-00-655-6759
FSC: 5310 — Nuts and Washers
CAGE: 07482 — GENERAL ELECTRIC COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 321 OVERALL
nut_styleHEXAGON
nut_height0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNEF
thread_directionLEFT-HAND
precious_materialSILVER
surface_treatmentSILVER OVERALL
width_across_flats1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
nominal_thread_size0.812 INCHES IN
bearing_surface_typeCHAMFERED
drilled_hole_diameter0.070 INCHES NOMINAL IN
NSN5310-00-655-6759
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 612A278P2 · 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
•
WIDTH ACROSS FLATS: 1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNEF
•
PRECIOUS MATERIAL: SILVER
•
HOLE CONFIGURATION STYLE: CONFIGURATION B
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 0.812 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.040 INCHES MINIMUM AND 1.100 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNEF
PRECIOUS MATERIALSILVER
HOLE CONFIGURATION STYLECONFIGURATION B
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5645 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE0.812 INCHES IN
NUT HEIGHT0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN
DRILLED HOLE DIAMETER0.070 INCHES NOMINAL IN
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 612A278P2?
612A278P2 is a NUT,PLAIN,HEXAGON.
What is the NSN for 612A278P2?
612A278P2 is cataloged in the U.S. Government catalog under NSN 5310-00-655-6759. This indicates validated use in U.S. government and defense supply chains.
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