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SS5242-4 — SETSCREW

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

SS5242-4: SETSCREW.

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4137 OR STEEL COMP 8740 FASTENER, head_style: HEADLESS (SETSCREW), point_style: DOG, point_length: 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN, thread_class: 3A A, thread_length: 0.280 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-289-5003, 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
SS5242-4
NSN: 5305-01-289-5003
FSC: 5305 — Screws
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 4137 OR STEEL COMP 8740 FASTENER
head_styleHEADLESS (SETSCREW)
point_styleDOG
point_length0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
thread_class3A A
thread_length0.280 INCHES NOMINAL IN
point_diameter0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
fastener_length0.403 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
hardness_rating43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM FASTENER
locking_featureSTRIP THREADS
thread_directionRIGHT-HAND
surface_treatmentCADMIUM AND CHROMATE FASTENER
NSN5305-01-289-5003
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SS5242-4 · 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
•
POINT DIAMETER: 0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
•
POINT LENGTH: 0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.403 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
•
THREAD LENGTH: 0.280 INCHES NOMINAL IN
•
HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM FASTENER
•
MATERIAL DOCUMENT AND CLASSIFICATION: AISI 4137 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE FASTENER
TECHNICAL CHARACTERISTICS
POINT DIAMETER0.120 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.094 INCHES MINIMUM AND 0.095 INCHES MAXIMUM IN
POINT LENGTH0.123 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN
FASTENER LENGTH0.403 INCHES MINIMUM AND 0.413 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416 TY2 CL2 FED SPEC SINGLE TREATMENT RESPONSE FASTENER
THREAD LENGTH0.280 INCHES NOMINAL IN
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 47.0 ROCKWELL C MAXIMUM FASTENER
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 4137 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE FASTENER
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEHEADLESS (SETSCREW)
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-001-5016 5305-00-001-9160 5305-00-001-9629 5305-00-001-9742 5305-00-001-9768 5305-00-003-4306 5305-00-003-6694 5305-00-003-6753
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SS5242-4?
SS5242-4 is a SETSCREW.
What is the NSN for SS5242-4?
SS5242-4 is cataloged in the U.S. Government catalog under NSN 5305-01-289-5003. 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.