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F2552-02 — NUT,SELF-LOCKING,BARREL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

F2552-02: NUT,SELF-LOCKING,BARREL.

The NUT,SELF-LOCKING,BARREL is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 NUT, nut_style: FLOATING SELF-LOCKING BARREL, nut_height: 0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, nut_length: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT MAXIMUM DEGF, nut_diameter: 0.398 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-065-5945, 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
F2552-02
NSN: 5310-01-065-5945
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 NUT
nut_styleFLOATING SELF-LOCKING BARREL
nut_height0.220 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
nut_length0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
nut_diameter0.398 INCHES MINIMUM AND 0.402 INCHES MAXIMUM IN
thread_class3B
barrel_height0.245 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating31.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
special_featuresROLLPINS CARBON STEEL,-CADMIUM ;PLATE QQ-P-416 TYPE 2 CLASS 3
NSN5310-01-065-5945
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F2552-02 · 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
•
NUT LENGTH: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE SHELL
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
TEMP RATING: 250.0 FAHRENHEIT MAXIMUM DEGF
•
HARDNESS RATING: 31.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI ASSN STD SINGLE MATERIAL RESPONSE NUT
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
NUT LENGTH0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE SHELL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TYPE 2 CLASS-3 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
TEMP RATING250.0 FAHRENHEIT MAXIMUM DEGF
HARDNESS RATING31.0 ROCKWELL C MINIMUM AND 37.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE NUT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.190 INCHES IN
NUT DIAMETER0.398 INCHES MINIMUM AND 0.402 INCHES MAXIMUM 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 1
BFU00931-3Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F2552-02?
F2552-02 is a NUT,SELF-LOCKING,BARREL.
What parts can replace F2552-02?
There is 1 known substitute for F2552-02: BFU00931-3. Substitute compatibility should be verified for your specific system.
What is the NSN for F2552-02?
F2552-02 is cataloged in the U.S. Government catalog under NSN 5310-01-065-5945. This indicates validated use in U.S. government and defense supply chains.
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