PartsTable
Technical Data Sheet
MIL-DTL-27426 ✓ Verified by PartsTable
· BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING,RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, ring_style: SPIRAL, usage_design: INTERNAL, inside_diameter: 0.687 INCHES NOMINAL IN, major_thickness: 0.031 INCHES NOMINAL IN, outside_diameter: 0.817 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-017-6083, 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
MIL-DTL-27426
NSN: 5325-00-017-6083
FSC: 5325
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
ring_styleSPIRAL
usage_designINTERNAL
inside_diameter0.687 INCHES NOMINAL IN
major_thickness0.031 INCHES NOMINAL IN
outside_diameter0.817 INCHES NOMINAL IN
surface_treatmentPASSIVATE
cross-sectional_shape_styleDOUBLE OVAL
material_document_and_classificationAMS5866 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE
part_name_assigned_by_controlling_agencyRING, RETAINING, SPIRAL
surface_treatment_document_and_classificationQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE
NSN5325-00-017-6083
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: MIL-DTL-27426 · 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 HARDNESS RATING: 73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM
OUTSIDE DIAMETER: 1.769 INCHES NOMINAL IN
MATERIAL: STEEL
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD NO. 66,COMPOSITION A/A FED STD SINGLE MATERIAL RESPONSE
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 2 CLASS AND 1.625 SIZE
CASEHARDENING INDICATOR: NOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
USAGE DESIGN: EXTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL HARDNESS RATING73.0 ROCKWELL A MINIMUM AND 77.9 ROCKWELL A MAXIMUM
OUTSIDE DIAMETER1.769 INCHES NOMINAL IN
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD NO. 66,COMPOSITION A/A FED STD SINGLE MATERIAL RESPONSE
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 2 CLASS AND 1.625 SIZE
CASEHARDENING INDICATORNOT CASEHARDENED
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
USAGE DESIGNEXTERNAL
MAJOR THICKNESS0.062 INCHES NOMINAL IN
INSIDE DIAMETER1.513 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 1
7986914Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MIL-DTL-27426?
MIL-DTL-27426 is a RING,RETAINING.
What parts can replace MIL-DTL-27426?
There is 1 known substitute for MIL-DTL-27426: 7986914. Substitute compatibility should be verified for your specific system.
What is the NSN for MIL-DTL-27426?
MIL-DTL-27426 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-017-6083. This indicates validated use in U.S. government and defense supply chains.
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