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H553-203-57D4 — SCREW,CAP,SOCKET HEAD

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

H553-203-57D4: 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 5305-01-671-4443, 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
H553-203-57D4
NSN: 5305-01-671-4443
FSC: 5305 — Screws
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
Part NumberH553-203-57D4
NSN5305-01-671-4443
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: H553-203-57D4 · 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
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 10
564-7286740-57D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-H5532003-0057Reference document
Same NSN cross-reference
Reference document — Secondary reference
H547-0001-H5532003-0057Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
845-7284928 ITEM 43D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H547-0001-H5532003-0057D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-H5532003-0057D4Same 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 H553-203-57D4?
H553-203-57D4 is a SCREW,CAP,SOCKET HEAD.
What parts can replace H553-203-57D4?
There are 10 known substitutes for H553-203-57D4: 564-7286740-57D4, 7383858-H5532003-0057, H547-0001-H5532003-0057 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H553-203-57D4?
H553-203-57D4 is cataloged in the U.S. Government catalog under NSN 5305-01-671-4443. This indicates validated use in U.S. government and defense supply chains.
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