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A02R2894-2 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

A02R2894-2: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include material: STEEL COMP 630 OVERALL, nut_style: HEXAGON, thread_class: 3B, thread_series: UNF, overall_height: 0.438 INCHES NOMINAL IN, special_features: SLOTS IN UPPER PORTION OF HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-045-1935, 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
A02R2894-2
NSN: 5310-00-045-1935
FSC: 5310 — Nuts and Washers
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 630 OVERALL
nut_styleHEXAGON
thread_class3B
thread_seriesUNF
overall_height0.438 INCHES NOMINAL IN
special_featuresSLOTS IN UPPER PORTION OF HEXAGON
thread_directionRIGHT-HAND
washer_thickness0.125 INCHES NOMINAL IN
surface_treatmentPASSIVATE OVERALL
width_across_flats0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
nominal_thread_size0.500 INCHES IN
washer_outside_diameter1.050 INCHES NOMINAL IN
NSN5310-00-045-1935
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: A02R2894-2 · 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: 1.050 INCHES NOMINAL IN
•
WIDTH ACROSS FLATS: 0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
•
THREAD SERIES: UNF
•
WASHER THICKNESS: 0.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.438 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER1.050 INCHES NOMINAL IN
WIDTH ACROSS FLATS0.738 INCHES MINIMUM AND 0.752 INCHES MAXIMUM IN
THREAD SERIESUNF
WASHER THICKNESS0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.500 INCHES IN
SPECIAL FEATURESSLOTS IN UPPER PORTION OF HEXAGON
SURFACE TREATMENTPASSIVATE OVERALL
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A02R2894-2?
A02R2894-2 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What is the NSN for A02R2894-2?
A02R2894-2 is cataloged in the U.S. Government catalog under NSN 5310-00-045-1935. This indicates validated use in U.S. government and defense supply chains.
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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.