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5HD8 — RING,DEE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

5HD8: RING,DEE.

The RING,DEE is a the manufacturer industrial component. Key specifications include material: STEEL, stock_size: 0.630 IN. DIA.

IN, inside_width: 1.130 INCHES NOMINAL IN, inside_height: 0.750 INCHES NOMINAL IN, straight_side_form: ROLLER, end_item_identification: 3990-01-406-1340 IMPROVED PLS FLATRACK. This part is cataloged in the U.S. Government catalog under NSN 5365-01-421-8334, 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
5HD8
NSN: 5365-01-421-8334
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL
stock_size0.630 IN. DIA. IN
inside_width1.130 INCHES NOMINAL IN
inside_height0.750 INCHES NOMINAL IN
straight_side_formROLLER
end_item_identification3990-01-406-1340 IMPROVED PLS FLATRACK
NSN5365-01-421-8334
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,DEE TITLE COMPONENT PN 5HD8 MFR RING,DEE
KEY FEATURES
•
STRAIGHT SIDE FORM: ROLLER
•
INSIDE WIDTH: 1.130 INCHES NOMINAL IN
•
STOCK SIZE: 0.630 IN. DIA. IN
•
MATERIAL: STEEL
•
INSIDE HEIGHT: 0.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STRAIGHT SIDE FORMROLLER
INSIDE WIDTH1.130 INCHES NOMINAL IN
STOCK SIZE0.630 IN. DIA. IN
END ITEM IDENTIFICATION3990-01-406-1340 IMPROVED PLS FLATRACK
MATERIALSTEEL
INSIDE HEIGHT0.750 INCHES NOMINAL IN
OTHER ITEMS IN FSC 5365 — Bushings, Rings, Shims, and Spacers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5365-00-000-6078 5365-00-000-7436 5365-00-001-1292 5365-00-001-1365 5365-00-001-1841 5365-00-001-1915 5365-00-001-1916 5365-00-001-1940
SUBSTITUTES & CROSS-REFERENCES 1
12440689Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5HD8?
5HD8 is a RING,DEE.
What parts can replace 5HD8?
There is 1 known substitute for 5HD8: 12440689. Substitute compatibility should be verified for your specific system.
What is the NSN for 5HD8?
5HD8 is cataloged in the U.S. Government catalog under NSN 5365-01-421-8334. 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.