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1854H320 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1854H320: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: INTERNAL STEPPED, usage_design: INTERNAL, inside_diameter: 5.750 INCHES NOMINAL IN, major_thickness: 0.093 INCHES NOMINAL IN, outside_diameter: 6.250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-965-5173, 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
1854H320
NSN: 5325-00-965-5173
FSC: 5325 — Fastening Devices
CAGE: 3D6E9 — MERITOR INDUSTRIAL PRODUCTS, LLC (USA)
SPECIFICATIONS
materialSTEEL
ring_styleINTERNAL STEPPED
usage_designINTERNAL
inside_diameter5.750 INCHES NOMINAL IN
major_thickness0.093 INCHES NOMINAL IN
outside_diameter6.250 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
cross-sectional_shape_styleROUNDED CORNERS
NSN5325-00-965-5173
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1854H320 · 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
•
MATERIAL HARDNESS RATING: 48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
•
USAGE DESIGN: INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
OUTSIDE DIAMETER: 6.250 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.093 INCHES NOMINAL IN
•
INSIDE DIAMETER: 5.750 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: INTERNAL STEPPED
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING48.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
USAGE DESIGNINTERNAL
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
OUTSIDE DIAMETER6.250 INCHES NOMINAL IN
MAJOR THICKNESS0.093 INCHES NOMINAL IN
INSIDE DIAMETER5.750 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEINTERNAL STEPPED
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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1854H320?
1854H320 is a RING,RETAINING.
What is the NSN for 1854H320?
1854H320 is cataloged in the U.S. Government catalog under NSN 5325-00-965-5173. 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.