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PartsTable / COMPONENT / B1250-089-S
B1250-089-S ✓ Verified by PartsTable
— · NUT WASHER
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 WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, hole_diameter: 0.630 INCHES MINIMUM IN, overall_height: 0.111 INCHES NOMINAL IN, outside_diameter: 1.250 INCHES MAXIMUM IN, style_designator: SPRING TENSION, material_thickness: 0.089 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 5310-01-341-9474, 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
B1250-089-S
NSN: 5310-01-341-9474
FSC: 5310
CAGE: 77535 — ASSOCIATED SPRING US, LLC DIV CORRY (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
hole_diameter0.630 INCHES MINIMUM IN
overall_height0.111 INCHES NOMINAL IN
outside_diameter1.250 INCHES MAXIMUM IN
style_designatorSPRING TENSION
material_thickness0.089 INCHES NOMINAL IN
material_document_and_classificationAMS5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-341-9474
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B1250-089-S · 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
•
MATERIAL THICKNESS: 0.089 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP 631 OVERALL
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.250 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.630 INCHES MINIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL THICKNESS0.089 INCHES NOMINAL IN
OVERALL HEIGHT0.111 INCHES NOMINAL IN
MATERIALSTEEL COMP 631 OVERALL
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.250 INCHES MAXIMUM IN
HOLE DIAMETER0.630 INCHES MINIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
704-5731C1Interchangeable
interchangeable cross-reference
interchangeable
7045731CMSInterchangeable
interchangeable cross-reference
interchangeable
81250-0895Interchangeable
interchangeable cross-reference
interchangeable
26-0401-58Interchangeable
interchangeable cross-reference
interchangeable
B1250-089-SInterchangeable
interchangeable cross-reference
interchangeable
113946Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B1250-089-S?
B1250-089-S is a WASHER,SPRING TENSION.
What parts can replace B1250-089-S?
There are 7 known substitutes for B1250-089-S: 704-5731C1, 7045731CMS, 81250-0895 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B1250-089-S?
B1250-089-S is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-341-9474. 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