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12018A7005 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

12018A7005: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OR STEEL, ring_style: SPIRAL ROUND, inside_diameter: 0.75 INCHES MINIMUM AND 1.25 INCHES MAXIMUM IN, outside_diameter: 1.0 INCHES MINIMUM AND 1.5 INCHES MAXIMUM IN, material_diameter: 0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN, supplementary_features: MATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-631-0004, 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
12018A7005
NSN: 5325-01-631-0004
FSC: 5325 — Fastening Devices
CAGE: 01365 — MARINE CORPS SYSTEMS COMMAND DIV MARINE CORPS SYSTEMS COMMAND TECHNICAL DATA REPOSITORY CUSTOMER SERVICE (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OR STEEL
ring_styleSPIRAL ROUND
inside_diameter0.75 INCHES MINIMUM AND 1.25 INCHES MAXIMUM IN
outside_diameter1.0 INCHES MINIMUM AND 1.5 INCHES MAXIMUM IN
material_diameter0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
supplementary_featuresMATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580
end_item_identification3990-01-537-1045
cross-sectional_shape_styleROUND
material_document_and_classificationASTM A313, TYPE 302 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyRING,COTTER
NSN5325-01-631-0004
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 12018A7005 · 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 DIAMETER: 0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
•
SUPPLEMENTARY FEATURES: MATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A313, TYPE 302 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
OUTSIDE DIAMETER: 1.0 INCHES MINIMUM AND 1.5 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.75 INCHES MINIMUM AND 1.25 INCHES MAXIMUM IN
•
RING STYLE: SPIRAL ROUND
TECHNICAL CHARACTERISTICS
MATERIAL DIAMETER0.070 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN
SUPPLEMENTARY FEATURESMATERIAL: MECHANICAL SPRING WIRE,TYPE 302 0R 304 IAW ASTM A313 OR A580
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A313, TYPE 302 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A580 ASSN STD 2ND MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUND
OUTSIDE DIAMETER1.0 INCHES MINIMUM AND 1.5 INCHES MAXIMUM IN
INSIDE DIAMETER0.75 INCHES MINIMUM AND 1.25 INCHES MAXIMUM IN
RING STYLESPIRAL ROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYRING,COTTER
END ITEM IDENTIFICATION3990-01-537-1045
MATERIALSTEEL COMP 302 OR STEEL
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
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12018A7005?
12018A7005 is a RING,RETAINING.
What is the NSN for 12018A7005?
12018A7005 is cataloged in the U.S. Government catalog under NSN 5325-01-631-0004. 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.