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SPE321-D8 — Technical Data Sheet

✓ 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,HEXAGON HEAD is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System under NSN 5305-00-582-9501, 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
SPE321-D8
NSN: 5305-00-582-9501
FSC: 5305
CAGE: K0378 — ROLLS-ROYCE PLC DIV DEFENSE (EUROPE) (GBR)
SPECIFICATIONS
Part NumberSPE321-D8
NSN5305-00-582-9501
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: SPE321-D8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
FFS85TYPE11STYLE10PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MS35311-208InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
318272-54InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P2955InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10043942InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
41-0-63InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SPE321-D8?
SPE321-D8 is a SCREW,CAP,HEXAGON HEAD.
What parts can replace SPE321-D8?
There are 15 known substitutes for SPE321-D8: FFS85TYPE11STYLE10P, MS35311-208, 318272-54 and 12 more. Substitute compatibility should be verified for your specific system.
Is SPE321-D8 still available?
SPE321-D8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026