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02557 — BOLT,SHEAR

✓ Government record, cited
Alexander Toys · BOLT SCREW
PRODUCT OVERVIEW

02557: BOLT,SHEAR.

A real feast for lovers of creative toys. Origami 3D are unique sets that will allow you to create the most beautiful 3D paper sculptures you have ever seen. All this thanks to patented modules, very detailed instructions and step-by-step instructional videos showing how to assemble the selected model.

The set includes ready-made cut shapes, with a clearly marked bend line, even suggesting the direction in which we should do it. In three simple movements, we can make a basic module that will be used to create a masterpiece. All modules are assembled identically and then joined together without the use of glue to form a figurine.

This part is cataloged in the U.S. Government catalog under NSN 5306-01-309-9902, indicating validated use in U.S. government and defense logistics supply chains.

WHERE IT FITS
02557
NSN: 5306-01-309-9902
FSC: 5306 — Bolts
CAGE: 14153 — DEFENSE LOGISTICS AGENCY DBA DEFENSE SUPPLY CENTER PHILADELPHIA (USA)
SPECIFICATIONS
materialSTEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL
head_styleDISHED HEXAGON
grip_length0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN
head_height0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
thread_class3A A
grip_diameter0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN
thread_length0.425 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES GRIP
fastener_length1.410 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
special_featuresSAFETY CRITICAL ITEM. APPLY ONE COAT OF MIL-P-23377, TY 1, CL 1 OR 3 AND TWO TOP COATS OF MIL-C-46168, COLOR CODE 33538 PER FED-STD-595 TO TOP OF HEAD
thread_directionRIGHT-HAND
NSN5306-01-309-9902
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 02557 · Alexander Toys ⚠ 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
•
SURFACE FINISH: 32.0 MICROINCHES THREADS
•
HEAD HEIGHT: 0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.410 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
•
THREAD LENGTH: 0.425 INCHES NOMINAL IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH32.0 MICROINCHES THREADS
SURFACE FINISH63.0 MICROINCHES GRIP
SURFACE FINISH63.0 MICROINCHES BEARING SURFACE OF HEAD
HEAD HEIGHT0.125 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
FASTENER LENGTH1.410 INCHES MINIMUM AND 1.440 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY 2 CL 2 FED SPEC ALL TREATMENT RESPONSES OVERALL
THREAD LENGTH0.425 INCHES NOMINAL IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
SHANK UNTHREADED HOLE DIAMETER0.076 INCHES MINIMUM AND 0.086 INCHES MAXIMUM FIRST HOLE IN
CRITICALITY CODE JUSTIFICATIONFEAT
OTHER ITEMS IN FSC 5306 — Bolts
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5306-00-001-1276 5306-00-001-1949 5306-00-001-1988 5306-00-001-1989 5306-00-001-1990 5306-00-001-1991 5306-00-001-1993 5306-00-001-2017
SUBSTITUTES & CROSS-REFERENCES 1
8936410-01Reference 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 02557?
02557 is a BOLT,SHEAR manufactured by Alexander Toys.
What parts can replace 02557?
There is 1 known substitute for 02557: 8936410-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 02557?
02557 is cataloged in the U.S. Government catalog under NSN 5306-01-309-9902. This indicates validated use in U.S. government and defense supply chains.
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