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RB9084 — WASHER,SHOULDERED AND RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

RB9084: WASHER,SHOULDERED AND RECESSED.

The WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, recess_angle: 90.0 DEGREES NOMINAL, hole_diameter: 0.6875 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN, shoulder_height: 0.125 INCHES NOMINAL IN, outside_diameter: 1.3744 INCHES MINIMUM AND 1.3749 INCHES MAXIMUM IN, style_designator: SHOULDERED AND RECESSED. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-376-6885, 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
RB9084
NSN: 5310-00-376-6885
FSC: 5310 — Nuts and Washers
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
recess_angle90.0 DEGREES NOMINAL
hole_diameter0.6875 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN
shoulder_height0.125 INCHES NOMINAL IN
outside_diameter1.3744 INCHES MINIMUM AND 1.3749 INCHES MAXIMUM IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.134 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
material_thickness0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
NSN5310-00-376-6885
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: RB9084 · 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
•
SHOULDER HEIGHT: 0.125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
OUTSIDE DIAMETER: 1.3744 INCHES MINIMUM AND 1.3749 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
•
SHOULDER DIAMETER: 1.134 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
HOLE DIAMETER: 0.6875 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN
•
RECESS ANGLE: 90.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
SHOULDER HEIGHT0.125 INCHES NOMINAL IN
STYLE DESIGNATORSHOULDERED AND RECESSED
OUTSIDE DIAMETER1.3744 INCHES MINIMUM AND 1.3749 INCHES MAXIMUM IN
MATERIAL THICKNESS0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
SHOULDER DIAMETER1.134 INCHES MINIMUM AND 1.139 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
HOLE DIAMETER0.6875 INCHES MINIMUM AND 0.6880 INCHES MAXIMUM IN
RECESS ANGLE90.0 DEGREES NOMINAL
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 RB9084?
RB9084 is a WASHER,SHOULDERED AND RECESSED.
What is the NSN for RB9084?
RB9084 is cataloged in the U.S. Government catalog under NSN 5310-00-376-6885. 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.