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DIN 137 B4 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

DIN 137 B4: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 4.3 MILLIMETERS NOMINAL MM, outside_diameter: 9.0 MILLIMETERS NOMINAL MM, style_designator: SPRING TENSION, surface_treatment: ZINC OVERALL, material_thickness: 0.5 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-437-7076, 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
DIN 137 B4
NSN: 5310-01-437-7076
FSC: 5310 — Nuts and Washers
CAGE: 15526 — METRIC AND MULTISTANDARD COMPONENTS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter4.3 MILLIMETERS NOMINAL MM
outside_diameter9.0 MILLIMETERS NOMINAL MM
style_designatorSPRING TENSION
surface_treatmentZINC OVERALL
material_thickness0.5 MILLIMETERS NOMINAL MM
end_item_identificationMEDIUM MINE PROTECTED VEHICLE - MMPV
NSN5310-01-437-7076
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: DIN 137 B4 · 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
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 9.0 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 0.5 MILLIMETERS NOMINAL MM
•
SURFACE TREATMENT: ZINC OVERALL
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 4.3 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER9.0 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS0.5 MILLIMETERS NOMINAL MM
SURFACE TREATMENTZINC OVERALL
END ITEM IDENTIFICATIONMEDIUM MINE PROTECTED VEHICLE - MMPV
MATERIALSTEEL OVERALL
HOLE DIAMETER4.3 MILLIMETERS NOMINAL MM
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES 1
DIN137B-M4ZPReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DIN 137 B4?
DIN 137 B4 is a WASHER,SPRING TENSION.
What parts can replace DIN 137 B4?
There is 1 known substitute for DIN 137 B4: DIN137B-M4ZP. Substitute compatibility should be verified for your specific system.
What is the NSN for DIN 137 B4?
DIN 137 B4 is cataloged in the U.S. Government catalog under NSN 5310-01-437-7076. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.