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Technical Data Sheet
PartsTable / COMPONENT / M37426-3143D
M37426-3143D ✓ 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 COMP 1074, ring_style: SPECIAL FLAT, usage_design: INTERNAL, inside_diameter: 1.687 INCHES NOMINAL IN, major_thickness: 0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN, outside_diameter: 1.768 INCHES MINIMUM AND 1.794 INCHES MAXIMUM 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 5325-01-487-3527, 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
M37426-3143D
NSN: 5325-01-487-3527
FSC: 5325
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1074
ring_styleSPECIAL FLAT
usage_designINTERNAL
inside_diameter1.687 INCHES NOMINAL IN
major_thickness0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
outside_diameter1.768 INCHES MINIMUM AND 1.794 INCHES MAXIMUM IN
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
end_item_identificationGE F414-400 ENGINE; ACCESSORY GEARBOX ASSEMBLY
cross-sectional_shape_styleDOUBLE OVAL
criticality_code_justificationAGAV
material_document_and_classificationFED STD 66, COMP 1074 FED STD SINGLE MATERIAL RESPONSE
NSN5325-01-487-3527
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: M37426-3143D · 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
•
INSIDE DIAMETER: 1.687 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: DOUBLE OVAL
•
CRITICALITY CODE JUSTIFICATION: AGAV
•
MATERIAL: STEEL COMP 1074
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, COMP 1074 FED STD SINGLE MATERIAL RESPONSE
•
SURFACE TREATMENT: PASSIVATE
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MAJOR THICKNESS: 0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
INSIDE DIAMETER1.687 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEDOUBLE OVAL
CRITICALITY CODE JUSTIFICATIONAGAV
MATERIALSTEEL COMP 1074
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, COMP 1074 FED STD SINGLE MATERIAL RESPONSE
SURFACE TREATMENTPASSIVATE
CASEHARDENING INDICATORNOT CASEHARDENED
MAJOR THICKNESS0.046 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN
RING STYLESPECIAL FLAT
USAGE DESIGNINTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
M2742630260DInterchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-27426/3Interchangeable
interchangeable cross-reference
interchangeable
WH-1075Interchangeable
interchangeable cross-reference
interchangeable
69983S106Interchangeable
interchangeable cross-reference
interchangeable
RR-106SInterchangeable
interchangeable cross-reference
interchangeable
6748072-106Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M37426-3143D?
M37426-3143D is a RING,RETAINING.
What parts can replace M37426-3143D?
There are 19 known substitutes for M37426-3143D: M2742630260D, MIL-DTL-27426/3, WH-1075 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M37426-3143D?
M37426-3143D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-01-487-3527. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026