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Technical Data Sheet
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2L31 — 2L31

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2L31: 2L31.

The 2L31 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5315-01-188-0652, 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
2L31
NSN: 5315-01-188-0652
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 61178 — TUTHILL CORPORATION DBA TUTHILL PUMP GROUP (USA)
SPECIFICATIONS
Part Number2L31
NSN5315-01-188-0652
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2L31 · 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
OTHER ITEMS IN FSC 5315 — Nails, Machine Keys, and Pins
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5315-00-000-1037 5315-00-000-1067 5315-00-000-1245 5315-00-000-1372 5315-00-000-1412 5315-00-001-1571 5315-00-001-1572 5315-00-001-1602
SUBSTITUTES & CROSS-REFERENCES 1
2L31-6958Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 2L31?
2L31 is a 2L31.
What parts can replace 2L31?
There is 1 known substitute for 2L31: 2L31-6958. Substitute compatibility should be verified for your specific system.
What is the NSN for 2L31?
2L31 is cataloged in the U.S. Government catalog under NSN 5315-01-188-0652. This indicates validated use in U.S. government and defense supply chains.
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