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Technical Data Sheet
PartsTable / COMPONENT / 25704-281220-34-0
25704-281220-34-0 ✓ 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 SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FLAT CHAMFER, head_height: 0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN, thread_class: 3A A, head_diameter: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN, thread_length: 1.000 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 5305-00-207-6929, 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
25704-281220-34-0
NSN: 5305-00-207-6929
FSC: 5305
CAGE: D1839 — BAAINBW DOKUMENTE OHNE NUTZUNGSRECHTE DES BAAINBW FUR BESCHAFFUNGSZWECKE (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFLAT CHAMFER
head_height0.244 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
thread_class3A A
head_diameter0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
thread_length1.000 INCHES MAXIMUM IN
fastener_length1.500 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OR ZINC OVERALL
width_across_flats0.187 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN
internal_drive_styleHEXAGON
NSN5305-00-207-6929
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 25704-281220-34-0 · 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
•
HEAD DIAMETER: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
•
FASTENER LENGTH: 1.500 INCHES NOMINAL IN
•
INTERNAL DRIVE STYLE: HEXAGON
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 3A A
TECHNICAL CHARACTERISTICS (FLIS)
HEAD DIAMETER0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN
FASTENER LENGTH1.500 INCHES NOMINAL IN
INTERNAL DRIVE STYLEHEXAGON
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD DIAMETER0.250 INCHES IN
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS3A A
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MINIMUM YIELD STRENGTH130000 POUNDS PER SQUARE INCH LBS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
509-053Interchangeable
interchangeable cross-reference
interchangeable
402275-20Interchangeable
interchangeable cross-reference
interchangeable
DM74123NInterchangeable
interchangeable cross-reference
interchangeable
G11060BInterchangeable
Same NIIN cross-reference
interchangeable
MILS933TYPECInterchangeable
Same NIIN cross-reference
interchangeable
587447Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25704-281220-34-0?
25704-281220-34-0 is a SCREW,CAP,SOCKET HEAD.
What parts can replace 25704-281220-34-0?
There are 6 known substitutes for 25704-281220-34-0: 509-053, 402275-20, DM74123N and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 25704-281220-34-0?
25704-281220-34-0 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-207-6929. 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