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137ST M2.6 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

137ST M2.6: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 2.8 MILLIMETERS NOMINAL MM, hardness_rating: 43.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM, outside_diameter: 5.5 MILLIMETERS NOMINAL MM, style_designator: SPRING TENSION, material_thickness: 0.3 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-382-1381, 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
137ST M2.6
NSN: 5310-01-382-1381
FSC: 5310 — Nuts and Washers
CAGE: 15526 — METRIC AND MULTISTANDARD COMPONENTS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter2.8 MILLIMETERS NOMINAL MM
hardness_rating43.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
outside_diameter5.5 MILLIMETERS NOMINAL MM
style_designatorSPRING TENSION
material_thickness0.3 MILLIMETERS NOMINAL MM
NSN5310-01-382-1381
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 137ST M2.6 · 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
•
HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: SPRING TENSION
•
OUTSIDE DIAMETER: 5.5 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 0.3 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 2.8 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORSPRING TENSION
OUTSIDE DIAMETER5.5 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS0.3 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
HOLE DIAMETER2.8 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 1
71454Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 137ST M2.6?
137ST M2.6 is a WASHER,SPRING TENSION.
What parts can replace 137ST M2.6?
There is 1 known substitute for 137ST M2.6: 71454. Substitute compatibility should be verified for your specific system.
What is the NSN for 137ST M2.6?
137ST M2.6 is cataloged in the U.S. Government catalog under NSN 5310-01-382-1381. 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.