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42312D210 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

42312D210: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302, ring_style: SPECIAL, usage_design: INTERNAL, inside_diameter: 0.796 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN, major_thickness: 0.0195 INCHES MINIMUM AND 0.0225 INCHES MAXIMUM IN, outside_diameter: 0.926 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-121-7756, 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
42312D210
NSN: 5325-00-121-7756
FSC: 5325 — Fastening Devices
CAGE: 82402 — TRIUMPH GEAR SYSTEMS INC DBA TRIUMPH GEAR SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 302
ring_styleSPECIAL
usage_designINTERNAL
inside_diameter0.796 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN
major_thickness0.0195 INCHES MINIMUM AND 0.0225 INCHES MAXIMUM IN
outside_diameter0.926 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleRECTANGULAR
NSN5325-00-121-7756
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 42312D210 · 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 302 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-766, CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
OUTSIDE DIAMETER: 0.926 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.0195 INCHES MINIMUM AND 0.0225 INCHES MAXIMUM IN
•
INSIDE DIAMETER: 0.796 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPECIAL
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 302 ASSN STD SINGLE MATERIAL RESPONSE OR AISI 302 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-5059, TYPE 302 MIL SPEC SINGLE MATERIAL RESPONSE OR AMS 5688 ASSN STD SINGLE MATERIAL RESPONSE OR QQ-S-766, CLASS 302 FED SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
OUTSIDE DIAMETER0.926 INCHES MINIMUM AND 0.939 INCHES MAXIMUM IN
MAJOR THICKNESS0.0195 INCHES MINIMUM AND 0.0225 INCHES MAXIMUM IN
INSIDE DIAMETER0.796 INCHES MINIMUM AND 0.809 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPECIAL
SURFACE TREATMENTPASSIVATE
MATERIALSTEEL COMP 302
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 2
VH-87Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7527336-2Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 42312D210?
42312D210 is a RING,RETAINING.
What parts can replace 42312D210?
There are 2 known substitutes for 42312D210: VH-87, 7527336-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 42312D210?
42312D210 is cataloged in the U.S. Government catalog under NSN 5325-00-121-7756. 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.