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Technical Data Sheet
PartsTable / MRO / 7S12
7S12 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The 7S12 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.690 INCHES NOMINAL IN, overall_height: 0.125 INCHES NOMINAL IN, outside_diameter: 1.252 INCHES NOMINAL IN, style_designator: SPRING TENSION, material_thickness: 0.010 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-227-4887, 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
MRO→ MRO_GENERAL→ 7S12
NSN: 5310-00-227-4887
FSC: 5310
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.690 INCHES NOMINAL IN
overall_height0.125 INCHES NOMINAL IN
outside_diameter1.252 INCHES NOMINAL IN
style_designatorSPRING TENSION
material_thickness0.010 INCHES NOMINAL IN
NSN5310-00-227-4887
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7S12 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HOLE DIAMETER: 0.690 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL: STEEL OVERALL
•
MATERIAL THICKNESS: 0.010 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.252 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.690 INCHES NOMINAL IN
STYLE DESIGNATORSPRING TENSION
MATERIALSTEEL OVERALL
MATERIAL THICKNESS0.010 INCHES NOMINAL IN
OUTSIDE DIAMETER1.252 INCHES NOMINAL IN
OVERALL HEIGHT0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
TD-1160(P)/UInterchangeable
interchangeable cross-reference
interchangeable
7S12Interchangeable
interchangeable cross-reference
interchangeable
125X13Interchangeable
interchangeable cross-reference
interchangeable
61-881Interchangeable
interchangeable cross-reference
interchangeable
14274Interchangeable
interchangeable cross-reference
interchangeable
412-188Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 7S12?
7S12 is a 7S12. It is classified as a MRO (MRO_GENERAL).
What parts can replace 7S12?
There are 15 known substitutes for 7S12: TD-1160(P)/U, 7S12, 125X13 and 12 more. Substitute compatibility should be verified for your specific system.
Is 7S12 still available?
7S12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026