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H553-2003-56D4 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

H553-2003-56D4: SCREW,CAP,SOCKET HEAD.

The SCREW,CAP,SOCKET HEAD is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5305-01-671-4532, 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
H553-2003-56D4
NSN: 5305-01-671-4532
FSC: 5305 — Screws
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part NumberH553-2003-56D4
NSN5305-01-671-4532
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H553-2003-56D4 · 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
SUBSTITUTES & CROSS-REFERENCES 8
7383858-H5532003-0056D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
755079-H5532003-0056Reference document
Same NSN cross-reference
Reference document — Secondary reference
G547-0003-H5532003-0056D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-H5532003-0056Reference document
Same NSN cross-reference
Reference document — Secondary reference
H5532003-0056D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0.500-13UNC-3AX0.750LG NICUALD4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H553-2003-56D4?
H553-2003-56D4 is a SCREW,CAP,SOCKET HEAD.
What parts can replace H553-2003-56D4?
There are 8 known substitutes for H553-2003-56D4: 7383858-H5532003-0056D4, 755079-H5532003-0056, G547-0003-H5532003-0056D4 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H553-2003-56D4?
H553-2003-56D4 is cataloged in the U.S. Government catalog under NSN 5305-01-671-4532. This indicates validated use in U.S. government and defense supply chains.
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