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Technical Data Sheet
PartsTable / COMPONENT / FF-N-836E TYPE 2, ST 4
FF-N-836E TYPE 2, ST 4 ✓ 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

The FF-N-836E TYPE 2, ST 4 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-989-1874, 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
FF-N-836E TYPE 2, ST 4
NSN: 5310-00-989-1874
FSC: 5310
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
Part NumberFF-N-836E TYPE 2, ST 4
NSN5310-00-989-1874
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FF-N-836E TYPE 2, ST 4 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
THREAD QUANTITY PER INCH: 10
•
NUT HEIGHT: 0.734 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
THREAD QUANTITY PER INCH10
NUT HEIGHT0.734 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
WIDTH ACROSS FLATS1.231 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81348-FF-N-836 GOVERNMENT STANDARD
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
AOLA-B1B-A10Interchangeable
interchangeable cross-reference
interchangeable
831-164Interchangeable
interchangeable cross-reference
interchangeable
831-160Interchangeable
interchangeable cross-reference
interchangeable
D11531Interchangeable
interchangeable cross-reference
interchangeable
15535Interchangeable
interchangeable cross-reference
interchangeable
A-1415Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FF-N-836E TYPE 2, ST 4?
FF-N-836E TYPE 2, ST 4 is a FF-N-836E TYPE 2, ST 4.
What parts can replace FF-N-836E TYPE 2, ST 4?
There are 24 known substitutes for FF-N-836E TYPE 2, ST 4: AOLA-B1B-A10, 831-164, 831-160 and 21 more. Substitute compatibility should be verified for your specific system.
Is FF-N-836E TYPE 2, ST 4 still available?
FF-N-836E TYPE 2, ST 4 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