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4071832 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4071832: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), overall_height: 0.79 INCHES NOMINAL IN, special_features: FINISH PER FM100 D60 TYPE 1 (MAGNIBLACK 575). LOCKING FEATURE IS TOP LOCK DEFORMED THREAD..

This part is cataloged in the U.S. Government catalog under NSN 5310-01-643-9432, 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
4071832
NSN: 5310-01-643-9432
FSC: 5310 — Nuts and Washers
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_height0.79 INCHES NOMINAL IN
special_featuresFINISH PER FM100 D60 TYPE 1 (MAGNIBLACK 575). LOCKING FEATURE IS TOP LOCK DEFORMED THREAD.
thread_directionRIGHT-HAND
width_across_flats1.29 INCHES NOMINAL IN
nominal_thread_size0.88 INCHES IN
end_item_identification4210-01-622-0440; MRAP - M-ATV
washer_outside_diameter1.75 INCHES NOMINAL IN
thread_quantity_per_inch9
NSN5310-01-643-9432
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4071832 · 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
•
WASHER OUTSIDE DIAMETER: 1.75 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 1.29 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.88 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.79 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER1.75 INCHES NOMINAL IN
WIDTH ACROSS FLATS1.29 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.88 INCHES IN
SPECIAL FEATURESFINISH PER FM100 D60 TYPE 1 (MAGNIBLACK 575). LOCKING FEATURE IS TOP LOCK DEFORMED THREAD.
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT, FLA, LKDT
NUT STYLEHEXAGON
THREAD CLASS2B
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 4071832?
4071832 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What is the NSN for 4071832?
4071832 is cataloged in the U.S. Government catalog under NSN 5310-01-643-9432. 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.