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Technical Data Sheet
PartsTable / COMPONENT / 40256-3PC70
40256-3PC70 ✓ 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, ring_style: WIRE, usage_design: INTERNAL, inside_diameter: 1.313 INCHES NOMINAL IN, major_thickness: 0.063 INCHES NOMINAL IN, outside_diameter: 1.4385 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 5325-00-306-1440, 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
40256-3PC70
NSN: 5325-00-306-1440
FSC: 5325
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL
ring_styleWIRE
usage_designINTERNAL
inside_diameter1.313 INCHES NOMINAL IN
major_thickness0.063 INCHES NOMINAL IN
outside_diameter1.4385 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
cross-sectional_shape_styleROUNDED CORNERS
material_document_and_classificationJAN-S-1160 GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE
NSN5325-00-306-1440
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 40256-3PC70 · 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: STEEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: JAN-S-1160 GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE
•
MAJOR THICKNESS: 0.063 INCHES NOMINAL IN
•
RING STYLE: WIRE
•
INSIDE DIAMETER: 1.313 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.4385 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
USAGE DESIGN: INTERNAL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
MATERIAL DOCUMENT AND CLASSIFICATIONJAN-S-1160 GRADE 1 MIL SPEC SINGLE MATERIAL RESPONSE
MAJOR THICKNESS0.063 INCHES NOMINAL IN
RING STYLEWIRE
INSIDE DIAMETER1.313 INCHES NOMINAL IN
OUTSIDE DIAMETER1.4385 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
USAGE DESIGNINTERNAL
CASEHARDENING INDICATORNOT CASEHARDENED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
1713049Interchangeable
interchangeable cross-reference
interchangeable
1-JH-2280 PIECE 10Interchangeable
interchangeable cross-reference
interchangeable
18889Interchangeable
interchangeable cross-reference
interchangeable
18889-REV-FInterchangeable
interchangeable cross-reference
interchangeable
4190696Interchangeable
interchangeable cross-reference
interchangeable
40051-32ITEM7Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40256-3PC70?
40256-3PC70 is a RING,RETAINING.
What parts can replace 40256-3PC70?
There are 13 known substitutes for 40256-3PC70: 1713049, 1-JH-2280 PIECE 10, 18889 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40256-3PC70?
40256-3PC70 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-306-1440. 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