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Technical Data Sheet
PartsTable / COMPONENT / 37891H
37891H ✓ 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

NUT,PLAIN,SINGLE BALL SEAT,HEXAG. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-880-2005, 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
37891H
NSN: 5310-00-880-2005
FSC: 5310
CAGE: 05444 — HAMILTON TRAILER CO INC (USA)
SPECIFICATIONS
Part Number37891H
NSN5310-00-880-2005
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 37891H · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
8989Interchangeable
interchangeable cross-reference
interchangeable
LC032C3MWInterchangeable
interchangeable cross-reference
interchangeable
83155HInterchangeable
interchangeable cross-reference
interchangeable
37891Interchangeable
interchangeable cross-reference
interchangeable
11286Interchangeable
interchangeable cross-reference
interchangeable
43812Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 37891H?
37891H is a NUT,PLAIN,SINGLE BALL SEAT,HEXAG.
What parts can replace 37891H?
There are 22 known substitutes for 37891H: 8989, LC032C3MW, 83155H and 19 more. Substitute compatibility should be verified for your specific system.
Is 37891H still available?
37891H is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026