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Technical Data Sheet
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BB49374 — BB49374

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

BB49374: BB49374.

The BB49374 is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5315-00-770-0833, 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
BB49374
NSN: 5315-00-770-0833
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
Part NumberBB49374
NSN5315-00-770-0833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: BB49374 · 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
3578BReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BB49374?
BB49374 is a BB49374.
What parts can replace BB49374?
There is 1 known substitute for BB49374: 3578B. Substitute compatibility should be verified for your specific system.
What is the NSN for BB49374?
BB49374 is cataloged in the U.S. Government catalog under NSN 5315-00-770-0833. This indicates validated use in U.S. government and defense supply chains.
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