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5100-43C — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

5100-43C: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, ring_style: EXTERNAL, usage_design: EXTERNAL, inside_diameter: 0.395 INCHES NOMINAL IN, major_thickness: 0.025 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-663-2282, 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
5100-43C
NSN: 5325-00-663-2282
FSC: 5325 — Fastening Devices
CAGE: K9077 — DYNAMIC CONTROLS LTD (GBR)
SPECIFICATIONS
materialCOPPER ALLOY
ring_styleEXTERNAL
usage_designEXTERNAL
inside_diameter0.395 INCHES NOMINAL IN
major_thickness0.025 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating37.0 ROCKWELL C MINIMUM
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-663-2282
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 5100-43C · 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: 37.0 ROCKWELL C MINIMUM
•
USAGE DESIGN: EXTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MAJOR THICKNESS: 0.025 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.395 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: EXTERNAL
•
MATERIAL: COPPER ALLOY
TECHNICAL CHARACTERISTICS
MATERIAL HARDNESS RATING37.0 ROCKWELL C MINIMUM
USAGE DESIGNEXTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MAJOR THICKNESS0.025 INCHES NOMINAL IN
INSIDE DIAMETER0.395 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLEEXTERNAL
MATERIALCOPPER ALLOY
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
340-0046-000Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5100-43C?
5100-43C is a RING,RETAINING.
What parts can replace 5100-43C?
There is 1 known substitute for 5100-43C: 340-0046-000. Substitute compatibility should be verified for your specific system.
What is the NSN for 5100-43C?
5100-43C is cataloged in the U.S. Government catalog under NSN 5325-00-663-2282. 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.