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400856 — NUT,SLEEVE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

400856: NUT,SLEEVE.

The NUT,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: SLEEVE, nut_length: 0.190 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), flange_diameter: 0.560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-784-4687, 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
400856
NSN: 5310-00-784-4687
FSC: 5310 — Nuts and Washers
CAGE: 52661 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleSLEEVE
nut_length0.190 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
flange_diameter0.560 INCHES NOMINAL IN
flange_thickness0.160 INCHES NOMINAL IN
nominal_thread_size0.313 INCHES IN
thread_quantity_per_inch24
criticality_code_justificationFEAT
NSN5310-00-784-4687
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 400856 · 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
•
FLANGE DIAMETER: 0.560 INCHES NOMINAL IN
•
NUT LENGTH: 0.190 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.160 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
NOMINAL THREAD SIZE: 0.313 INCHES IN
•
NUT STYLE: SLEEVE
TECHNICAL CHARACTERISTICS
FLANGE DIAMETER0.560 INCHES NOMINAL IN
NUT LENGTH0.190 INCHES NOMINAL IN
FLANGE THICKNESS0.160 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
CRITICALITY CODE JUSTIFICATIONFEAT
NOMINAL THREAD SIZE0.313 INCHES IN
SPECIAL FEATURESSQUARE BOSS EXTENDING FROM FLANGE0.403 INCH SQUARE; THIS PART MEETS THE Y REQUIREMENTS DUE TO CRITICAL FEATURES, TOLERANCES, FIT RESTRICTIONS, MATERIAL PROPERTIES AND MANUFACTURING PROCESS. FAILURE COULD RESULT IN LOSS OR SUBSTANTIAL DAMAGE TO WEAPON SYSTEM, DEATH OR SERIOUS INJURY IN
NUT STYLESLEEVE
THREAD CLASS3B
THREAD QUANTITY PER INCH24
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 400856?
400856 is a NUT,SLEEVE.
What is the NSN for 400856?
400856 is cataloged in the U.S. Government catalog under NSN 5310-00-784-4687. This indicates validated use in U.S. government and defense supply chains.
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