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M2742620101D — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

M2742620101D: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, ring_style: SPIRAL, usage_design: EXTERNAL, inside_diameter: 0.451 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN, major_thickness: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN, strength_rating: ERR-060. This part is cataloged in the U.S.

Government catalog under NSN 5325-01-311-4086, 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
M2742620101D
NSN: 5325-01-311-4086
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_styleSPIRAL
usage_designEXTERNAL
inside_diameter0.451 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN
major_thickness0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
strength_ratingERR-060
outside_diameter0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-01-311-4086
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M2742620101D · 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
•
STRENGTH RATING: ERR-060
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.451 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
STRENGTH RATINGERR-060
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 302 ASSN STD 1ST MATERIAL RESPONSE AND AISI 302 ASSN STD 2ND MATERIAL RESPONSE AND MIL-S-5059, TYPE 302 MIL SPEC 3RD MATERIAL RESPONSE AND AMS 5688 ASSN STD 4TH MATERIAL RESPONSE AND QQ-S-766, CLASS 302 FED SPEC 5TH MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
MAJOR THICKNESS0.033 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN
INSIDE DIAMETER0.451 INCHES MINIMUM AND 0.464 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPIRAL
SURFACE TREATMENTPASSIVATE
SUBSTITUTES & CROSS-REFERENCES 5
1019-904Reference document
Same NSN cross-reference
Reference document — Secondary reference
RSN50SReference document
Same NSN cross-reference
Reference document — Secondary reference
MIL-DTL-27426Reference document
Same NSN cross-reference
Reference document — Identification reference
M27426-2101DReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
RSN505PKM9Reference 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 M2742620101D?
M2742620101D is a RING,RETAINING.
What parts can replace M2742620101D?
There are 5 known substitutes for M2742620101D: 1019-904, RSN50S, MIL-DTL-27426 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M2742620101D?
M2742620101D is cataloged in the U.S. Government catalog under NSN 5325-01-311-4086. 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.