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28C803-600 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

28C803-600: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, usage_design: EXTERNAL, inside_diameter: 5.840 MILLIMETERS NOMINAL MM, major_thickness: 0.880 MILLIMETERS MINIMUM AND 0.920 MILLIMETERS MAXIMUM MM, surface_treatment: CADMIUM, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-829-9845, 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
28C803-600
NSN: 5325-00-829-9845
FSC: 5325 — Fastening Devices
CAGE: 04660 — AIL SYSTEMS INC SUB OF EATON CORP (USA)
SPECIFICATIONS
materialSTEEL
ring_styleE
usage_designEXTERNAL
inside_diameter5.840 MILLIMETERS NOMINAL MM
major_thickness0.880 MILLIMETERS MINIMUM AND 0.920 MILLIMETERS MAXIMUM MM
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-829-9845
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 28C803-600 · 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
•
USAGE DESIGN: EXTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.880 MILLIMETERS MINIMUM AND 0.920 MILLIMETERS MAXIMUM MM
•
INSIDE DIAMETER: 5.840 MILLIMETERS NOMINAL MM
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: E
•
SURFACE TREATMENT: CADMIUM
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.880 MILLIMETERS MINIMUM AND 0.920 MILLIMETERS MAXIMUM MM
INSIDE DIAMETER5.840 MILLIMETERS NOMINAL MM
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEE
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
OTHER ITEMS IN FSC 5325 — Fastening Devices
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5325-00-000-1884 5325-00-000-9988 5325-00-001-1567 5325-00-001-2043 5325-00-001-3842 5325-00-001-3858 5325-00-001-3871 5325-00-001-4317
SUBSTITUTES & CROSS-REFERENCES 1
PLRM0Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 28C803-600?
28C803-600 is a RING,RETAINING.
What parts can replace 28C803-600?
There is 1 known substitute for 28C803-600: PLRM0. Substitute compatibility should be verified for your specific system.
What is the NSN for 28C803-600?
28C803-600 is cataloged in the U.S. Government catalog under NSN 5325-00-829-9845. 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.