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2552-144 — NUT,SELF-LOCKING,BARREL

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2552-144: 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: 1.364 INCHES MINIMUM AND 1.384 INCHES MAXIMUM IN, nut_length: 2.000 INCHES NOMINAL IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 1.5554 INCHES MINIMUM AND 1.5584 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5306-00-526-4457, 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
2552-144
NSN: 5306-00-526-4457
NIINs: 005264457, 006590286
FSC: 5306 — Bolts
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 NUT
nut_styleFLOATING SELF-LOCKING BARREL
nut_height1.364 INCHES MINIMUM AND 1.384 INCHES MAXIMUM IN
nut_length2.000 INCHES NOMINAL IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
nut_diameter1.5554 INCHES MINIMUM AND 1.5584 INCHES MAXIMUM IN
thread_class3B
barrel_height0.817 INCHES MINIMUM AND 0.837 INCHES MAXIMUM IN
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating29.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
NSN5306-00-526-4457
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2552-144 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHOULDER SHAPE: ROUND FIRST SHOULDER
•
HEAD STYLE: HEXAGON
•
WIDTH BETWEEN FLATS: 1.000 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
SHOULDER SHAPEROUND FIRST SHOULDER
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS1.000 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OVERALL
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 2552-144?
2552-144 is a NUT,SELF-LOCKING,BARREL.
What is the NSN for 2552-144?
2552-144 is cataloged in the U.S. Government catalog under NSN 5306-00-526-4457. 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.