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29556-1 — SCREW,TAPPING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

29556-1: SCREW,TAPPING.

The SCREW,TAPPING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: FILLISTER, head_height: 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, head_diameter: 0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN, fastener_length: 0.625 INCHES NOMINAL IN, internal_drive_style: CROSS RECESS TYPE 1. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-129-9428, 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
29556-1
NSN: 5305-00-129-9428
FSC: 5305 — Screws
CAGE: 24976 — DANFOSS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleFILLISTER
head_height0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
head_diameter0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
fastener_length0.625 INCHES NOMINAL IN
internal_drive_styleCROSS RECESS TYPE 1
nonmachine_nominal_thread_diameter0.250 INCHES IN
NSN5305-00-129-9428
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 29556-1 · 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD HEIGHT: 0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.625 INCHES NOMINAL IN
•
HEAD STYLE: FILLISTER
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
•
MATERIAL: STEEL OVERALL
•
HEAD DIAMETER: 0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD HEIGHT0.155 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
FASTENER LENGTH0.625 INCHES NOMINAL IN
HEAD STYLEFILLISTER
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
MATERIALSTEEL OVERALL
HEAD DIAMETER0.389 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
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 29556-1?
29556-1 is a SCREW,TAPPING.
What is the NSN for 29556-1?
29556-1 is cataloged in the U.S. Government catalog under NSN 5305-00-129-9428. 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.