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90675A029 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90675A029: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL OVERALL, nut_style: EXTERNAL TOOTH, thread_class: 2B, thread_series: UNF, overall_height: 0.234 INCHES NOMINAL IN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-134-1977, 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
90675A029
NSN: 5310-01-134-1977
NIINs: 011341977, 015983644
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleEXTERNAL TOOTH
thread_class2B
thread_seriesUNF
overall_height0.234 INCHES NOMINAL IN
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL
width_across_flats0.437 INCHES NOMINAL IN
nominal_thread_size0.250 INCHES IN
end_item_identificationMRAP - UNIQUE NSN - MRAP NO PERMANENT WSDC IDENTIFIED; MRAP BUFFALO MK2A2
thread_quantity_per_inch20
NSN5310-01-134-1977
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90675A029 · 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: 0.437 INCHES NOMINAL IN
•
THREAD SERIES: UNF
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
NUT STYLE: EXTERNAL TOOTH
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.234 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.437 INCHES NOMINAL IN
THREAD SERIESUNF
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.250 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
NUT STYLEEXTERNAL TOOTH
THREAD CLASS2B
END ITEM IDENTIFICATIONMRAP - UNIQUE NSN - MRAP NO PERMANENT WSDC IDENTIFIED; MRAP BUFFALO MK2A2
THREAD QUANTITY PER INCH20
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 90675A029?
90675A029 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What is the NSN for 90675A029?
90675A029 is cataloged in the U.S. Government catalog under NSN 5310-01-134-1977. 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.