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Technical Data Sheet
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212-0556-00 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

212-0556-00: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: PAN NO. 2, head_height: 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, thread_class: 2A A, head_diameter: 0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN, thread_length: 2.000 INCHES MAXIMUM IN, fastener_length: 2.000 INCHES NOMINAL IN.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-043-6758, 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
212-0556-00
NSN: 5305-00-043-6758
FSC: 5305 — Screws
CAGE: 80009 — TEKTRONIX, INC. (USA)
SPECIFICATIONS
head_stylePAN NO. 2
head_height0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
thread_class2A A
head_diameter0.357 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
thread_length2.000 INCHES MAXIMUM IN
fastener_length2.000 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleSLOT
nominal_thread_diameter0.190 INCHES IN
screw_surface_treatmentCADMIUM AND CHROMATE OR CHROMATE ZINC
thread_quantity_per_inch32
thread_series_designatorUNF
NSN5305-00-043-6758
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 212-0556-00 · 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 HEIGHT: 0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE OR CHROMATE ZINC
•
FASTENER LENGTH: 2.000 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633 EXCEPT BESSEMER COMP. FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-409 GRADE 2,3 OR 4 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 2.000 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: PAN NO. 2
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.099 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
SCREW SURFACE TREATMENTCADMIUM AND CHROMATE OR CHROMATE ZINC
FASTENER LENGTH2.000 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633 EXCEPT BESSEMER COMP. FED SPEC SINGLE MATERIAL RESPONSE OR QQ-W-409 GRADE 2,3 OR 4 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH2.000 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
NONDEFINITIVE SPEC/STD DATAI TYPE AND 9S STYLE
SCREW MATERIALSTEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1022 OR STEEL COMP 1524 OR STEEL COMP 1025 OR STEEL COMP 1527 OR STEEL COMP 1030 OR STEEL COMP 1033 OR STEEL COMP 1034 OR STEEL COMP 1035 OR STEEL COMP 1038 OR STEEL COMP 1040 OR STEEL COMP 1541 OR STEEL COMP 1108 OR STEEL COMP 1109 OR STEEL COMP 1110
SUBSTITUTES & CROSS-REFERENCES 3
212-556Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS35226-71Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
5305000436758Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 212-0556-00?
212-0556-00 is a SCREW,MACHINE.
What parts can replace 212-0556-00?
There are 3 known substitutes for 212-0556-00: 212-556, MS35226-71, 5305000436758. Substitute compatibility should be verified for your specific system.
What is the NSN for 212-0556-00?
212-0556-00 is cataloged in the U.S. Government catalog under NSN 5305-00-043-6758. 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.