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KF2-256-ET — NUT,PLAIN,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

KF2-256-ET: NUT,PLAIN,SPLINE.

The NUT,PLAIN,SPLINE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SPLINESPLINE, nut_height: 0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN, nut_diameter: 0.214 INCHES MINIMUM AND 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN, pilot_length: 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN, thread_class: 2B2B. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-253-5924, 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
KF2-256-ET
NSN: 5310-01-253-5924
FSC: 5310 — Nuts and Washers
CAGE: 46384 — PENN ENGINEERING & MANUFACTURING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSPLINESPLINE
nut_height0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN
nut_diameter0.214 INCHES MINIMUM AND 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
pilot_length0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
thread_class2B2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.157 INCHES MINIMUM AND 0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM0.163 INCHES MAXIMUM IN
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentCADMIUM OVERALL
nominal_thread_size0.086 INCHES0.086 INCHES IN
thread_quantity_per_inch5656
NSN5310-01-253-5924
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: KF2-256-ET · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
NOMINAL THREAD SIZE: 0.086 INCHES0.086 INCHES IN
•
NUT DIAMETER: 0.214 INCHES MINIMUM AND 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
•
PILOT DIAMETER: 0.157 INCHES MINIMUM AND 0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM0.163 INCHES MAXIMUM IN
•
PILOT LENGTH: 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
•
NUT HEIGHT: 0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
NOMINAL THREAD SIZE0.086 INCHES0.086 INCHES IN
NUT DIAMETER0.214 INCHES MINIMUM AND 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM0.224 INCHES MAXIMUM IN
PILOT DIAMETER0.157 INCHES MINIMUM AND 0.157 INCHES MINIMUM AND 0.163 INCHES MAXIMUM0.163 INCHES MAXIMUM IN
PILOT LENGTH0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN
NUT HEIGHT0.120 INCHES MINIMUM AND 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM0.130 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLESPLINESPLINE
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 1
KF2-256Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 KF2-256-ET?
KF2-256-ET is a NUT,PLAIN,SPLINE.
What parts can replace KF2-256-ET?
There is 1 known substitute for KF2-256-ET: KF2-256. Substitute compatibility should be verified for your specific system.
What is the NSN for KF2-256-ET?
KF2-256-ET is cataloged in the U.S. Government catalog under NSN 5310-01-253-5924. 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.