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50FP1-832 — NUT,SELF-LOCKING,SPLINE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

50FP1-832: NUT,SELF-LOCKING,SPLINE.

The NUT,SELF-LOCKING,SPLINE is a the manufacturer industrial component. Key specifications include nut_height: 0.286 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT NOMINAL DEGF, pilot_length: 0.063 INCHES NOMINAL IN, thread_class: 3B, thread_series: UNIFIED NATIONAL COARSE (UNC), pilot_diameter: 0.264 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-043-7752, 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
50FP1-832
NSN: 5310-01-043-7752
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
nut_height0.286 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT NOMINAL DEGF
pilot_length0.063 INCHES NOMINAL IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.264 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats0.375 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES IN
counterbore_diameter0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM NUT IN
nut_counterbore_depth0.053 INCHES NOMINAL NUT IN
NSN5310-01-043-7752
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 50FP1-832 · 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
•
WIDTH ACROSS FLATS: 0.375 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 250.0 FAHRENHEIT NOMINAL DEGF
•
NUT COUNTERBORE DEPTH: 0.053 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
COUNTERBORE DIAMETER: 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM NUT IN
•
PILOT DIAMETER: 0.264 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.375 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING250.0 FAHRENHEIT NOMINAL DEGF
NUT COUNTERBORE DEPTH0.053 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.164 INCHES IN
COUNTERBORE DIAMETER0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM NUT IN
PILOT DIAMETER0.264 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
PILOT LENGTH0.063 INCHES NOMINAL IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
SUBSTITUTES & CROSS-REFERENCES 1
81121Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 50FP1-832?
50FP1-832 is a NUT,SELF-LOCKING,SPLINE.
What parts can replace 50FP1-832?
There is 1 known substitute for 50FP1-832: 81121. Substitute compatibility should be verified for your specific system.
What is the NSN for 50FP1-832?
50FP1-832 is cataloged in the U.S. Government catalog under NSN 5310-01-043-7752. 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.