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M2742630172D — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

M2742630172D: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, ring_style: SPECIAL FLAT, usage_design: INTERNAL, inside_diameter: 2.786 INCHES NOMINAL IN, major_thickness: 0.059 INCHES NOMINAL IN, outside_diameter: 3.122 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-680-3147, 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
M2742630172D
NSN: 5325-00-680-3147
FSC: 5325 — Fastening Devices
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 302
ring_styleSPECIAL FLAT
usage_designINTERNAL
inside_diameter2.786 INCHES NOMINAL IN
major_thickness0.059 INCHES NOMINAL IN
outside_diameter3.122 INCHES NOMINAL IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
material_document_and_classificationSAE,30302 ASSN STD SINGLE MATERIAL RESPONSE
NSN5325-00-680-3147
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M2742630172D · 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: INTERNAL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE,30302 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 3.122 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.059 INCHES NOMINAL IN
•
INSIDE DIAMETER: 2.786 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPECIAL FLAT
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE,30302 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER3.122 INCHES NOMINAL IN
MAJOR THICKNESS0.059 INCHES NOMINAL IN
INSIDE DIAMETER2.786 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPECIAL FLAT
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 302
SUBSTITUTES & CROSS-REFERENCES 4
RR-300-SReference document
Same NSN cross-reference
Reference document — Secondary reference
5325PL2168268Reference document
Same NSN cross-reference
Reference document — Informative reference only
3415-450SReference document
Same NSN cross-reference
Reference document — Secondary reference
RR-300Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M2742630172D?
M2742630172D is a RING,RETAINING.
What parts can replace M2742630172D?
There are 4 known substitutes for M2742630172D: RR-300-S, 5325PL2168268, 3415-450S and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M2742630172D?
M2742630172D is cataloged in the U.S. Government catalog under NSN 5325-00-680-3147. 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.