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74782-14 — NUT,PLAIN,ASSEMBLED WASHER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

74782-14: NUT,PLAIN,ASSEMBLED WASHER.

The NUT,PLAIN,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 WASHER, nut_style: FLAT WITH TURNED BACK EDGE, nut_height: 0.375 INCHES MINIMUM IN, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 1.023 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-525-7475, 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
74782-14
NSN: 5310-01-525-7475
FSC: 5310 — Nuts and Washers
CAGE: 56878 — SPS TECHNOLOGIES, LLC DBA PB FASTENERS (USA)
SPECIFICATIONS
materialIRON ALLOY 660 WASHER
nut_styleFLAT WITH TURNED BACK EDGE
nut_height0.375 INCHES MINIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height1.023 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE WASHER
width_across_flats1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
nominal_thread_size0.875 INCHES IN
end_item_identificationB-1B AIRCRAFT
washer_outside_diameter1.415 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
NSN5310-01-525-7475
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74782-14 · 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: 1.415 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-36 ASSN STD SINGLE TREATMENT RESPONSE WASHER
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE NUT
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.023 INCHES MINIMUM AND 1.063 INCHES MAXIMUM IN
WASHER OUTSIDE DIAMETER1.415 INCHES MINIMUM AND 1.445 INCHES MAXIMUM IN
WIDTH ACROSS FLATS1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-36 ASSN STD SINGLE TREATMENT RESPONSE WASHER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-36 FED SPEC SINGLE TREATMENT RESPONSE NUT
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE NUT
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE WASHER
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.875 INCHES IN
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 74782-14?
74782-14 is a NUT,PLAIN,ASSEMBLED WASHER.
What is the NSN for 74782-14?
74782-14 is cataloged in the U.S. Government catalog under NSN 5310-01-525-7475. 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.