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MILR27426 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

MILR27426: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL, ring_style: SPECIAL FLAT, usage_design: INTERNAL, inside_diameter: 2.375 INCHES NOMINAL IN, major_thickness: 0.049 INCHES NOMINAL IN, outside_diameter: 2.476 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-200-5217, 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
MILR27426
NSN: 5325-00-200-5217
NIINs: 002005217, 002825380, 009520514, 009597158, 009803936, 010210398, 010487838, 010958228, 011622854, 011629942, 011960632, 012411022, 012573773, 012580428, 013121219, 013171009, 013279949, 013566699, 014083361, 014083363, 014200083, 014518230, 014528895, 014528897, 014865388, 014922361, 014984578, 014984580, 015581038
FSC: 5325 — Fastening Devices
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL
ring_styleSPECIAL FLAT
usage_designINTERNAL
inside_diameter2.375 INCHES NOMINAL IN
major_thickness0.049 INCHES NOMINAL IN
outside_diameter2.476 INCHES NOMINAL IN
surface_treatmentCADMIUM
casehardening_indicatorNOT CASEHARDENED
material_hardness_rating40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM
cross-sectional_shape_styleDOUBLE OVAL
NSN5325-00-200-5217
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MILR27426 · 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 1070 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
OUTSIDE DIAMETER: 5.436 INCHES NOMINAL IN
•
MAJOR THICKNESS: 0.074 INCHES NOMINAL IN
•
INSIDE DIAMETER: 4.936 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
RING STYLE: SPECIAL FLAT
TECHNICAL CHARACTERISTICS
USAGE DESIGNINTERNAL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1070 TO 1090 ASSN STD SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
OUTSIDE DIAMETER5.436 INCHES NOMINAL IN
MAJOR THICKNESS0.074 INCHES NOMINAL IN
INSIDE DIAMETER4.936 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
RING STYLESPECIAL FLAT
SURFACE TREATMENTCADMIUM
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES 1
M27426-3215BReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 MILR27426?
MILR27426 is a RING,RETAINING.
What parts can replace MILR27426?
There is 1 known substitute for MILR27426: M27426-3215B. Substitute compatibility should be verified for your specific system.
What is the NSN for MILR27426?
MILR27426 is cataloged in the U.S. Government catalog under NSN 5325-00-200-5217. This indicates validated use in U.S. government and defense supply chains.
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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.