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Technical Data Sheet
PartsTable / COMPONENT / 313-59-29PC21
313-59-29PC21 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SETSCREW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 410 OR STEEL COMP 416 OVERALL, head_style: SQUARE, head_height: 0.270 INCHES MINIMUM AND 0.293 INCHES MAXIMUM IN, point_style: FULL DOG, thread_class: 3A A, thread_length: 1.500 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-272-6241, 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
313-59-29PC21
NSN: 5305-00-272-6241
FSC: 5305
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 410 OR STEEL COMP 416 OVERALL
head_styleSQUARE
head_height0.270 INCHES MINIMUM AND 0.293 INCHES MAXIMUM IN
point_styleFULL DOG
thread_class3A A
thread_length1.500 INCHES MAXIMUM IN
fastener_length1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
hardness_rating30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_between_flats0.362 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
NSN5305-00-272-6241
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 313-59-29PC21 · 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
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
HARDNESS RATING: 30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 5 STYLE
•
THREAD LENGTH: 1.500 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD DIAMETER0.375 INCHES IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
HARDNESS RATING30.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 5 STYLE
THREAD LENGTH1.500 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
SURFACE TREATMENTPASSIVATE OVERALL
FASTENER LENGTH1.438 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
FFS103TYPE1STYLE5Interchangeable
interchangeable cross-reference
interchangeable
11444Interchangeable
interchangeable cross-reference
interchangeable
FFS103,TY1,ST5Interchangeable
interchangeable cross-reference
interchangeable
H2311 PIECE 38Interchangeable
interchangeable cross-reference
interchangeable
113060Interchangeable
interchangeable cross-reference
interchangeable
H2311 PIECE 39Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 313-59-29PC21?
313-59-29PC21 is a SETSCREW.
What parts can replace 313-59-29PC21?
There are 21 known substitutes for 313-59-29PC21: FFS103TYPE1STYLE5, 11444, FFS103,TY1,ST5 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 313-59-29PC21?
313-59-29PC21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-272-6241. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026