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12258-01 — Technical Data Sheet

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— · COMPONENT
WHAT YOU NEED TO KNOW
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PRODUCT OVERVIEW

The SPRING ASSEMBLY,LEAF is a the manufacturer industrial component. Key specifications include material: STEEL COMP 5160 OVERALL, design_type: MAINSPRING OR MAINSPRING W/AUXILIARY LEAF, material_hardness_rating: 3.0 BRINELL MINIMUM, spring_length_under_load: 64.250 INCHES NOMINAL IN, individual_leaf_type_designation: LEAF NO.1 MAIN SPRING, material_document_and_classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 2510-01-314-4467, 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
12258-01
NSN: 2510-01-314-4467
FSC: 2510
CAGE: 92967 — HUTCHENS INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL COMP 5160 OVERALL
design_typeMAINSPRING OR MAINSPRING W/AUXILIARY LEAF
material_hardness_rating3.0 BRINELL MINIMUM
spring_length_under_load64.250 INCHES NOMINAL IN
individual_leaf_type_designationLEAF NO.1 MAIN SPRING
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN2510-01-314-4467
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SPRING ASSEMBLY,LEAF TITLE COMPONENT PN 12258-01 MFR SPRING ASSEMBLY,LEAF
KEY FEATURES
•
SPRING LENGTH UNDER LOAD: 64.250 INCHES NOMINAL IN
•
DESIGN TYPE: MAINSPRING OR MAINSPRING W/AUXILIARY LEAF
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 5160 OVERALL
•
INDIVIDUAL LEAF TYPE DESIGNATION: LEAF NO.1 MAIN SPRING
•
MATERIAL HARDNESS RATING: 3.0 BRINELL MINIMUM
TECHNICAL CHARACTERISTICS
SPRING LENGTH UNDER LOAD64.250 INCHES NOMINAL IN
DESIGN TYPEMAINSPRING OR MAINSPRING W/AUXILIARY LEAF
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 5160 OVERALL
INDIVIDUAL LEAF TYPE DESIGNATIONLEAF NO.1 MAIN SPRING
MATERIAL HARDNESS RATING3.0 BRINELL MINIMUM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS15444-25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
D1020110InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B94.11MInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1560EG038-3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
12258InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 12258-01?
12258-01 is a SPRING ASSEMBLY,LEAF.
What parts can replace 12258-01?
There are 5 known substitutes for 12258-01: MS15444-25, D1020110, B94.11M and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 12258-01?
12258-01 is cataloged in the Federal Logistics Information System under NSN 2510-01-314-4467. 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: October 2026