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2812188-4 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

2812188-4: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include end_style: VERTEX CENTER OR ABOVE, ring_style: STRAIGHT GAP, usage_design: EXTERNAL, end_item_identification: W/S: AIRCRAFT, HORNET F/A-18; AIRCRAFT, INTRUDER A-6E; SUPPORT EQUIPMENT, MX PEACEKEEPER MISSILE, cross-sectional_shape_style: RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-228-9308, 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
2812188-4
NSN: 5325-00-228-9308
FSC: 5325 — Fastening Devices
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
end_styleVERTEX CENTER OR ABOVE
ring_styleSTRAIGHT GAP
usage_designEXTERNAL
end_item_identificationW/S: AIRCRAFT, HORNET F/A-18; AIRCRAFT, INTRUDER A-6E; SUPPORT EQUIPMENT, MX PEACEKEEPER MISSILE
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-228-9308
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 2812188-4 · 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
•
END STYLE: VERTEX CENTER OR ABOVE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
RING STYLE: STRAIGHT GAP
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
END STYLEVERTEX CENTER OR ABOVE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
RING STYLESTRAIGHT GAP
END ITEM IDENTIFICATIONW/S: AIRCRAFT, HORNET F/A-18; AIRCRAFT, INTRUDER A-6E; SUPPORT EQUIPMENT, MX PEACEKEEPER MISSILE
SUBSTITUTES & CROSS-REFERENCES 1
10084210Same 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 2812188-4?
2812188-4 is a RING,RETAINING.
What parts can replace 2812188-4?
There is 1 known substitute for 2812188-4: 10084210. Substitute compatibility should be verified for your specific system.
What is the NSN for 2812188-4?
2812188-4 is cataloged in the U.S. Government catalog under NSN 5325-00-228-9308. 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.