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2643-820-23-IB7 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2643-820-23-IB7: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY, usage_design: EXTERNAL OR INTERNAL, inside_diameter: 0.781 INCHES NOMINAL IN, major_thickness: 0.062 INCHES NOMINAL IN, outside_diameter: 0.970 INCHES NOMINAL IN, casehardening_indicator: NOT CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-493-3637, 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
2643-820-23-IB7
NSN: 5325-01-493-3637
FSC: 5325 — Fastening Devices
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
materialTITANIUM ALLOY
usage_designEXTERNAL OR INTERNAL
inside_diameter0.781 INCHES NOMINAL IN
major_thickness0.062 INCHES NOMINAL IN
outside_diameter0.970 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
end_item_identificationLOS ANGELES CLASS SSN (688)
cross-sectional_shape_styleRECTANGULAR
NSN5325-01-493-3637
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2643-820-23-IB7 · 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 OR INTERNAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.970 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.062 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.781 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: TITANIUM ALLOY
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL OR INTERNAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.970 INCHES NOMINAL IN
MAJOR THICKNESS0.062 INCHES NOMINAL IN
INSIDE DIAMETER0.781 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
END ITEM IDENTIFICATIONLOS ANGELES CLASS SSN (688)
MATERIALTITANIUM ALLOY
SUBSTITUTES & CROSS-REFERENCES 1
801-6758076Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 2643-820-23-IB7?
2643-820-23-IB7 is a RING,RETAINING.
What parts can replace 2643-820-23-IB7?
There is 1 known substitute for 2643-820-23-IB7: 801-6758076. Substitute compatibility should be verified for your specific system.
What is the NSN for 2643-820-23-IB7?
2643-820-23-IB7 is cataloged in the U.S. Government catalog under NSN 5325-01-493-3637. 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.